The cybersecurity news that actually matters, without the noise.

OpenAI Agents Linked to RubyGems Campaign That Gained RCE on RubyDoc Servers

The "major malicious attack" that targeted RubyGems in May 2026 was the work of a swarm of OpenAI agents, according to a new report published by researchers Spencer Kitts, Thomas Larsen, and Sydney Von Arx. On May 12, Maciej Mensfeld, senior product manager for software supply chain security at Mend.io, disclosed details of a coordinated cyber attack that targeted the package manager for the

Threat Actor Generates 1M Personalized Fraud Emails in 3 Days

Cybercriminals behind malicious email campaigns no longer have to compromise volume for credibility, or vice versa, thanks to AI.

CISA Calls for More Guidance, Less Spin, as Cyber Outages Escalate

A new joint government advisory signals a regulatory shift, pressing organizations to adopt more transparent breach notification and incident response protocols.

Why AI Is So Good at Scamming Humans

Fred Heiding of Menlo Park Intelligence talks with the Dark Reading News Desk about his research on frontier models, and their ability to influence human behavior and create emotional dependency.

AI Governance Can't Wait

Adversaries can manipulate AI defensive reasoning to silently compromise target networks.

GitLab CVSS 10 File-Read Flaw Draws In-the-Wild Probes After Disclosure

GitLab has released patches to address multiple flaws, including a maximum-severity security vulnerability that has witnessed in-the-wild probes within hours of public disclosure. The vulnerability in question is CVE-2026-85706 (CVSS score: 10.0), a path traversal issue in the repository commits API that could allow an unauthenticated user to read arbitrary files from the GitLab server under

Anthropic Says Seven China-Based AI Labs Ran Industrial-Scale Claude Distillation Attacks

Anthropic on Thursday said it identified and disrupted industrial-scale illicit distillation attacks against Claude from seven labs based in China, including Alibaba, Moonshot, DeepSeek, Z.ai (aka Zhipu), and MiniMax. Knowledge distillation by itself is a legitimate training method. It refers to a machine learning technique where a large, powerful AI model assumes the role of a "teacher" to

Papercut AI Swarm Attack Heralds Changes for Cyber Kill Chain

From creating lab environments for staging and testing agentic attacks to reconnaissance to lateral movement and exfiltration, the most innovative attackers are widely incorporating AI.

The Self-Expanding Stolen Inference Supply Chain: An AI Agent Harvesting and Re-Serving LLM Access, (Fri, Sep 11th)

I identified an attacker using a semi-autonomous coding agent to run an offensive operation: finding poorly secured LLM resale gateways, acquiring API access through ordinary web flaws and account farming, validating the resulting inference capacity, and aggregating it behind a single gateway of their own.

Claude Used to Automate Exploitation and Data Theft Across Multiple Victims

Anthropic has warned that cybercriminals and state-sponsored hackers alike are using its Claude models for cyber attacks, weapons design, propaganda, and mass surveillance between December 2025 and August 2026. The threat actors, which the artificial intelligence (AI) company has branded Generative Threat Groups (GTGs), span state-sponsored groups, financially motivated criminals, commercial

Russian State-Sponsored Hackers Use Claude to Rebuild Malware After Detection

Anthropic on Thursday revealed it disrupted a campaign mounted by a Russian state-sponsored threat actor that abused Claude for developing an AI-assisted workflow to get ahead of the detection curve. The operation has been attributed to a cyber espionage group it calls GTG-20006 (where "GTG" stands for Generative Threat Group), which aligns with broader reporting linking the cluster to Midnight

Introducing automatic remediation policies with Cloudflare CASB

Cloudflare CASB policies introduce a native automation engine built directly on the Cloudflare developer platform to remediate SaaS risks automatically. Security teams can now design event-driven logic to revoke risky file shares and send webhooks without manual intervention.

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-42016 JFrog Artifactory Incorrect Authorization Vulnerability CVE-2026-42018 JFrog Artifactory Improper Authentication Vulnerability CVE-2026-84869 ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant…

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements…

Your Critical Vulnerabilities Might Not Be Your Biggest Risk

Security teams have become exceptionally talented at finding vulnerabilities. Now, it’s time to turn our attention to optimizing the process for determining which of those vulnerabilities actually create a path to compromise. A critical vulnerability may look alarming on a scanner report, but if it sits behind strong segmentation, identity controls, and other defenses that prevent an attacker

Attackers Chain JFrog Artifactory Flaws to Gain Admin Control and Plant Backdoors

Attackers have chained two flaws in JFrog Artifactory, the repository that software build pipelines pull from, to take administrator control of self-hosted servers and plant backdoors, cloud security company Wiz said in a report. Wiz saw the attacks between August 15 and September 8. JFrog had fixed both flaws before then, so only servers that had not been updated were open to them.

China-Linked UNC3569 Exploited Sogou Input Method Flaw to Deploy GRAYRABBIT Backdoor

A China-linked hacking group exploited a flaw in Sogou Input Method, one of the most widely used tools for typing Chinese characters on Windows, to install a backdoor on victims' computers, security company Gen Digital said in research published Thursday. The attack started with a crafted link and ended with the attacker able to do anything the logged-in user could do. Tencent, which owns

PaperCut Replaces Emergency Patches With Fixes for Two Actively Exploited Flaws

PaperCut on Thursday released a new security maintenance release that replaces all previously published emergency patches that were pushed to address two security flaws that have come under active exploitation. The software development company said PaperCut NG/MF versions 26.0.5, 25.0.13 and 24.1.10 are now available for customers to download. "These are Regular Maintenance Releases (MR) that

Cisco FMC Flaws Exploited to Steal Credentials and Deploy Qilin Ransomware

Cisco has revealed that three distinct threat clusters linked to ransomware and state-sponsored attacks have been exploiting two recently patched Secure Firewall Management Center (FMC) vulnerabilities. The attacks leverage CVE-2026-20079 (CVSS score: 10.0), an authentication bypass vulnerability in the web interface of FMC software that could allow an unauthenticated, remote attacker to bypass

ISC Stormcast For Friday, September 11th, 2026 https://isc.sans.edu/podcastdetail/10090, (Fri, Sep 11th)

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Indonesia Hit by Android Banking App-Cloning Campaign

The GoldFactory threat group exploits the Android Work Profile feature to deliver the Gigabud Trojan, while Mantax Otax spreads separately.

Voice Callers Exploit BYOD to Reach Microsoft 365, Corporate Data

Threat actors are leveraging Microsoft's Graph API to identify lucrative targets, then passing their access to extortion groups like ShinyHunters.

ThreatsDay: 200 Android Flaws, Browser-Built Phishing, 119K Scam Shops + 23 More Stories

A lot of this week’s security news has the same awkward answer to one question: “Why was that allowed to work?” An extension asks for access and takes too much. A trusted service becomes part of a phishing chain. An old bug still gets results. An exposed system stays exposed. A package looks useful right up until it isn’t. Different stories, same basic problem: the path in was often already

Protecting organizations from AI-assisted executive impersonation and invoice fraud

Microsoft examines an AI-assisted business email compromise campaign that used executive impersonation and fake invoices to target finance teams with ACH payment fraud. The post Protecting organizations from AI-assisted executive impersonation and invoice fraud appeared first on Microsoft Security Blog .

Detect and disrupt AI-themed attacks with Microsoft Defender

See how Microsoft Defender detects and disrupts AI-themed phishing, malware, and multi-stage attacks across the attack chain. The post Detect and disrupt AI-themed attacks with Microsoft Defender appeared first on Microsoft Security Blog .

Nightmare-Eclipse Strikes Again with 'ShieldCrash' Windows Exploit

The disgruntled researcher continued their vendetta against Microsoft by publishing yet another zero-day exploit for Windows Defender.

Google Play Early Access Abused to Push Thousands of Deceptive Android Apps

Bad actors are misusing Google Play's Early Access program to push deceptive apps that claim to offer money, rewards, casino winnings, and premium content. Early Access apps are apps that haven't been released on the official Android app marketplace. The main idea behind the program is for developers to solicit user feedback for new applications or features they may be working on before their

Redtail Payload Analysis [Guest Diary], (Wed, Sep 9th)

[This is a Guest Diary by Aaron Ng, an ISC intern as part of the SANS.edu BACS program]

Orthanc DICOM Server

View CSAF Summary Successful exploitation of this vulnerability could allow an authenticated remote attacker to write past the end of a heap allocation when Orthanc decodes an attacker-supplied PNG or JPEG image, resulting in a crash of the Orthanc process and a denial-of-service condition. The following versions of Orthanc DICOM Server are affected: Orthanc DICOM Server <1.13.0. (CVE-2026-87020) CVSS Vendor Equipment Vulnerabilities v3 8.1 Orthanc Orthanc DICOM Server Integer Overflow or…

NextGen Healthcare Mirth Connect

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to exfiltrate date or cause a denial-of-service condition. The following versions of NextGen Healthcare Mirth Connect are affected: Mirth Connect <=v4.7.1 (CVE-2026-82583, CVE-2026-78224, CVE-2026-82578) CVSS Vendor Equipment Vulnerabilities v3 8.3 NextGen Healthcare NextGen Healthcare Mirth Connect Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), Improper Restriction…

ST Engineering iDirect iQ-Series Terminals (Update A)

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to gain unauthorized access to device information or cause a denial-of-service condition. The following versions of ST Engineering iDirect iQ-Series Terminals (Update A) are affected: Evolution iQ‑Series terminals <=4.5.2.1 (CVE-2026-38059, CVE-2026-38057, CVE-2026-38056, CVE-2026-38058) 3315‑Series terminals <=4.5.2.1 (CVE-2026-38059, CVE-2026-38057, CVE-2026-38056, CVE-2026-38058) 9‑Series terminals…

AVEVA Pipeline Integrity Monitor

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to disclose information, brute-force hashes, or run arbitrary code in a browser session. The following versions of AVEVA Pipeline Integrity Monitor are affected: AVEVA Pipeline Integrity Monitor <=2025_SP1_P1_build_7.1.9580.8513 (CVE-2026-81821, CVE-2026-81822, CVE-2026-81823, CVE-2026-81824) CVSS Vendor Equipment Vulnerabilities v3 8.4 AVEVA AVEVA Pipeline Integrity Monitor Use of Hard-coded…

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-67277 MikroTik RouterOS Missing Authentication for Critical Function Vulnerability CVE-2026-86060 MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational…

Check Point Discloses Two 9.8-Rated VPN Certificate Flaws Enabling Unauthenticated RCE

Check Point has patched two critical vulnerabilities in the way its firewall and management products handle VPN certificates. The company says both could allow an unauthenticated remote attacker to run code, but only "under specific conditions" that it has not described. One flaw affects Check Point's Security Gateways, its firewall appliances. The other affects those gateways and the Security

PaperCut Attacker Uses Hundreds of AI Agents to Compromise 440+ Instances

A suspected Russian-speaking cyber actor has been attributed to the use of artificial intelligence (AI) to devise exploits targeting a recently disclosed pair of security flaws in PaperCut NG/MF and break into hundreds of instances. According to independent reports from Blackpoint Cyber and GreyNoise, the activity originates from "45.142.193[.]132," an IP address that has been linked to

Gigabud Creates Android Work Profiles to Hide From Banking App Malware Checks

The Gigabud banking trojan now installs a second Android app that creates a work profile on an infected phone and drops a tampered banking app inside it, security firm Group-IB said in a report published on September 9. A work profile is a separate space that Android typically reserves for employer apps, and what's inside it is kept separate from everything in the personal space. That

CISA Flags Exploited Cisco, Citrix, Fortinet Flaws, Sets Sept. 12 Federal Patch Deadline

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added three flaws, each impacting Cisco, Citrix, and Fortinet, to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to apply the patches by September 12, 2026. The vulnerabilities are listed below - CVE-2026-20079 (CVSS score: 10.0) - An authentication

ISC Stormcast For Thursday, September 10th, 2026 https://isc.sans.edu/podcastdetail/10088, (Thu, Sep 10th)

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

The Machine With Many Faces: Post-Exploitation Identity Misuse in SPIFFE/SPIRE

Learn how root access on a compromised K8s node allows attackers to utilize SPIFFE/SPIRE metadata to spoof and harvest co-located workload identities. The post The Machine With Many Faces: Post-Exploitation Identity Misuse in SPIFFE/SPIRE appeared first on Unit 42 .

Nearly 1 in 10 Exposed LiteLLM Gateways Accepted the Example "sk-1234" Admin Key

Nearly one in ten of the internet-facing LiteLLM servers that Wiz Research scanned in February accepted sk-1234, the example admin key in LiteLLM's own setup guide. LiteLLM is an open-source AI gateway, the software a company puts between its applications and the model providers it pays for. That key is the gateway's administrator credential. Anyone who holds it can read every

Anthropic Discloses Fourth AI Hacking Incident Involving Claude Opus 4.6

Anthropic on Wednesday disclosed a fourth incident in which its artificial intelligence (AI) model broke into real third-party systems, marking the latest in a growing list of cases that have raised concerns about the security risks posed by autonomous AI agents. The AI company said the incident dates back to January 2026 and involved an early version of Claude Opus 4.6 that breached "

EU Cyber Resilience Act to Enforce New Reporting Requirements

Starting Friday, businesses operating in the EU will have just 24 hours to notify the government any time they discover serious product security incidents.

Threat matrix: Mapping threats across cloud web applications

Microsoft introduces the Cloud Web Applications Threat Matrix, a MITRE ATT&CK-aligned framework that helps defenders understand, prioritize, and mitigate threats to cloud-hosted web apps and serverless platforms. The post Threat matrix: Mapping threats across cloud web applications appeared first on Microsoft Security Blog .

Mythos Vulnerability Firehose Hits a Human Bottleneck

An analysis of Project Glasswing findings shows only a fraction have reached disclosure, and an even smaller number have been fixed.

US Government Accuses Chinese AI Firms of Distilling Frontier Models

US agencies claim Chinese companies covertly extracted billions of tokens from OpenAI, Anthropic, Google Gemini, and SpaceX's Grok to reduce development costs.

U.S. Disrupts Xinbi Guarantee Scam Marketplace, Freezes $52.8 Million in Crypto

The U.S. Department of Justice (DoJ) on Wednesday announced coordinated actions aimed at an illicit online marketplace called Xinbi Guarantee that offered scam services, including seizing Telegram channels used to run the service, confiscating two cryptocurrency wallets, and deploying the Scam Center Strike Force to Madagascar to help disrupt 13 scam compounds run by Chinese organized crime

Scans for Proxmox Servers, (Wed, Sep 9th)

About a week ago, Proxmox published an advisory revealing a vulnerability in older versions of Proxmox VE, its flagship Virtual Environment product. The vulnerability only affects version 7, which has not been supported for a couple of years now.

Passkey-themed social engineering leads to identity and cloud compromise

Passkey-themed social engineering is being used to compromise identities and enable broader cloud attacks. Learn how threat actors establish MFA persistence, abuse Microsoft Graph for reconnaissance, and access SharePoint, OneDrive, and email data, along with key detection and mitigation guidance. The post Passkey-themed social engineering leads to identity and cloud compromise appeared first on Microsoft Security Blog .

Four Spy Groups Used the Same Chrome and Windows Exploit Kit Within a Week

Multiple espionage-motivated threat activity clusters have been found deploying a previously undocumented exploit kit called BlueMoon that chains together multiple vulnerabilities in Microsoft Windows and Google Chrome. The first in-the-wild use of BlueMoon has been attributed to the China-aligned state-sponsored group tracked as APT31 (aka Bronze Vinewood, Judgement Panda, JungleBamboo,

Identity-Based AI Attack Threatens Security of Enterprise Data

"Workflow identity hijacking" can bypass standard security controls and hijack an organization's data by sending a basic request through an unauthenticated entry point.

Infostealer Logs Expose Replayable AI Tokens That Can Bypass MFA

Cybercriminals are hijacking artificial intelligence (AI) user accounts via information stealer logs to create "stolen keys" that grant illicit access to tools from model providers like Google, Anthropic, and others. Information stealers like Lumma Stealer or Vidar are equipped to harvest a wide range of data from compromised systems. This can include credential, session tokens, and API

CISA Releases Updated Insider Threat Guide With New Insights to Mitigate Physical and Cyber Threats

CISA Adds Four Known Exploited Vulnerabilities to Catalog

CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2025-25249 Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability CVE-2026-19490 Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability CVE-2026-87491 Google Chromium V8 Out of Bounds Write Vulnerability CVE-2026-20079 Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel…

Webinar: Learn How to Answer “Are We Exposed?” Faster After a New CVE

A major vulnerability is disclosed. The alert lands immediately. Then comes the harder question: Are we actually exposed? For many security teams, answering that means jumping between vulnerability scanners, endpoint tools, cloud inventories, SBOMs, repositories, and application data to build enough context to act. As AI accelerates vulnerability discovery and research, that delay matters more

DeepSeek Harness Flaw Let AI Agents Disable Their Own File Sandbox Without Approval

A flaw in DeepSeek Harness, DeepSeek's open-source tool for running AI coding agents on a developer's machine, let a sandboxed agent turn off its own sandbox with a single command. The tool runs an agent's commands inside an operating-system sandbox, so that an agent working on untrusted files cannot write outside its workspace. The agent could remove that limit by calling the tool's own web

Alby Hub Critical Flaw Could Let Attackers Take Over Internet-Exposed Bitcoin Wallets

Bitcoin wallet company Alby has warned of a critical flaw in Alby Hub that could have let an attacker take over a wallet and send its funds, but only where the owner had made the Hub reachable from the internet. Alby Hub is a self-hosted Lightning wallet, meaning the owner runs it on their own computer or server, and it holds their bitcoin. The flaw affects versions v1.7.0 through

Untracked Nightmares: The Threats Hiding Behind Commodity Infrastructure

An investigation into how cybercriminals used YouTube gaming lures and SEO poisoning to deliver multi-payload malware to enterprise networks. The post Untracked Nightmares: The Threats Hiding Behind Commodity Infrastructure appeared first on Unit 42 .

U.S. Agencies Accuse China AI Firms of Distilling Claude, GPT, Gemini, and Grok

U.S. cybersecurity and intelligence agencies have accused China-based artificial intelligence (AI) companies of conducting "systematic extraction" of proprietary functionalities and capabilities of American frontier models through distillation attacks. The activity has been described as occurring at an industrial-scale and one that forms the "core" of their AI development strategy, according to

Chrome V8 Zero-Day Exploited in the Wild Enables Code Execution Inside Sandbox

Google on Thursday released updates to patch 230 security vulnerabilities, including one that has come under active exploitation in the wild. The medium-severity vulnerability, assigned the CVE identifier CVE-2026-87491 (CVSS score: N/A), has been described as an out-of-bounds bug in V8, Chrome's JavaScript and WebAssembly engine. "Out-of-bounds write in V8 in Google Chrome prior to

New cPanel Flaw Lets a Hosting Account With Mail Privileges Run Code as Root

cPanel has patched a flaw that it says lets a single hosting account take control of an entire server. An authenticated account holder with mail-related privileges can create files of their choosing on the server through EmailTrack and, from there, run code as the root user. cPanel published the advisory on September 8 and says every supported version of cPanel and WHM is affected.

F5 BIG-IP APM Malware Injects a PHP Web Shell Into Memory, Evading Disk Scans

Malware linked to break-ins at F5 BIG-IP Access Policy Manager appliances hides a PHP web shell in memory instead of in a file on disk, Sophos said in an analysis published on September 7. When Apache loads any of the three appliances' own PHP scripts, the malware adds the web shell to the copy held in memory, so a check of the file on disk can come back clean. Those three scripts are

Researcher Drops New Microsoft Defender PoC Showing ShieldBreak Patch Can Be Bypassed

The security researcher known as Chaotic Eclipse has dropped a proof-of-concept (PoC) for yet another zero-day in Microsoft Defender. The vulnerability, codenamed ShieldCrash, is assessed to be a patch bypass for CVE-2026-69414 (CVSS score: 7.8), also called ShieldBreak, which the researcher reported last month. "Microsoft has failed to properly patch ShieldBreak CVE-2026-69414," Chaotic

SAP Patches CVSS 10.0 Kernel Flaw Enabling Unauthenticated Remote Code Execution

SAP has released security updates to address multiple vulnerabilities, including a maximum-severity flaw in SAP Extended Passport (EPP) Processing that could have a severe impact on the confidentiality, integrity, and availability of the application The vulnerability, tracked as CVE-2026-44756 (CVSS score: 10.0), has been described as a case of memory corruption. Discovered and reported by SAP

Microsoft Patches Record 974 Flaws, Including Two Exploited Windows Zero-Days

Microsoft on Tuesday broke Patch Tuesday records by addressing an earth-shattering 974 vulnerabilities spanning its software portfolio, including two flaws that it said have been actively exploited in the wild. These include 723 flaws in Windows, 111 in Office and Office 2016, 62 in SQL, and 22 in Developer Tools. Of these, over 110 shortcomings have been assigned a critical severity rating.

N-able N-central Pre-Auth RCE Flaw Exploited in the Wild

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a maximum-severity security flaw impacting N-able N-central to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to apply the fixes by September 11, 2026. The vulnerability in question is CVE-2026-86218 (CVSS score: 10.0), which has been described as a

ISC Stormcast For Wednesday, September 9th, 2026 https://isc.sans.edu/podcastdetail/10086, (Wed, Sep 9th)

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Microsoft Plugs Nearly 1,000 Security Holes

Microsoft Corp. today issued updates to plug at least 974 security holes in its Windows operating systems and other software, by far its biggest single patch batch ever. Microsoft says artificial intelligence is helping to speed the discovery of vulnerabilities, but security experts warn that many organizations already are struggling to prioritize the more human-intensive endeavor of testing and deploying so many fixes each month.

Patch Tuesday Sets Another Record With 974 CVEs

Attackers are actively exploiting two of the vulnerabilities and another 58 are more likely to be exploited, according to Microsoft.

Attackers Use Multi-Hop Google Redirects for Phishing Campaign

Threat actors are abusing multiple Google services to evade detection, ultimately harvesting credentials or installing ScreenConnect remote access.

OpenAI Agents Took Over Wiki Site Before Hugging Face Attack

Researchers and OpenAI disagree on whether the earlier incident involving DseWiki was a “hack” that the company did not disclose.

September 2026 Microsoft Patch Tuesday, (Tue, Sep 8th)

This month, Microsoft released patches for a record-breaking 973 vulnerabilities, including 113 rated critical. It is by far the largest Patch Tuesday to date, well ahead of the previous high of 664 set in July 2026. Two vulnerabilities are listed as exploited in the wild, while none were publicly disclosed before Patch Tuesday. Notable fixes include Windows privilege escalation and critical RCEs in Skype for Business, MSMQ and RRAS.

ClickFix Campaigns Abuse Legitimate Services for Persistent Access

Two separate attacks demonstrate how threat actors are finding new ways to compromise organizations by using the popular social engineering tactic.

Slim Spider Steals Crypto Custody Secrets From Brazilian Financial Institution

A previously undocumented financially motivated threat actor has been linked to attacks targeting Brazilian financial institutions since at least March 2026. Cybersecurity company CrowdStrike is tracking the Brazil-based activity cluster under the name Slim Spider. "The adversary demonstrates deep operational knowledge of Brazilian financial infrastructure, including the instant payment

Liquid Hackers Return 3,400 Bitcoin Taken via Elements Bug, Still Holding $47M in BTC

Whoever took nearly 4,000 bitcoin from the Liquid Network on Sunday, September 6, returned 3,400 of it the next day, Bitcoin's public record shows. About 598.5 bitcoin has not come back. Liquid is a Bitcoin sidechain that holds real bitcoin to back a token called L-BTC. The network is still paused, so holders cannot turn that token back into bitcoin. The 3,400 bitcoin was sent to a&

ChatGPT Flaw Let a Planted Prompt Send a Victim's Gmail Data to Another Account

Check Point Research said in a report published today that a single instruction planted in a ChatGPT conversation could cause ChatGPT to quietly work for an attacker while answering the user's question as usual. In the company's proof of concept, that hidden work read data from the user's connected Gmail account and passed it to a second ChatGPT account through a hidden channel

Autonomous AI Agents Compromise Thousands of Credentials in Under Six Hours

Threat actors are continuing to leverage artificial intelligence (AI) to streamline their operations, with one financially motivated hacking group employing an autonomous, multi-agent attack framework to carry out a large-scale credential harvesting campaign within six hours. Google Threat Intelligence Group (GTIG) said it has observed attackers with diverse motivations targeting proprietary AI

CareCam Pro IP Cameras

View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to take full control of the device. The following versions of CareCam Pro IP Cameras are affected: ANJIA AJL33PC0801 Firmware linux_linux_202008261138_svn13796_/_Bootloader_U-Boot_2010.06_compiled_2020-08-26 (CVE-2026-85083) CVSS Vendor Equipment Vulnerabilities v3 6.8 CareCam CareCam Pro IP Cameras Use of Hard-coded Credentials Background Critical Infrastructure Sectors: Commercial Facilities…

China-Based Artificial Intelligence Companies Conducting Industrial-Scale Distillation Campaigns Against U.S. AI Companies

Executive summary China-based artificial intelligence (AI) companies are conducting systematic extraction of proprietary functionalities and capabilities of U.S. AI companies’ models through industrial-scale knowledge distillation campaigns that form the core—not merely a supplement—of their AI development strategy. While “distillation” is recognized as a legitimate and useful technique in AI research, China-based AI companies are engaging in aggressive, malicious, and targeted distillation…

CISA Adds Four Known Exploited Vulnerabilities to Catalog

CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-75650 Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability CVE-2026-81963 Microsoft Windows Link Following Vulnerability CVE-2026-85880 Microsoft Windows Heap-Based Buffer Overflow Vulnerability CVE-2026-86218 N-able N-central Static Code Injection Vulnerability These types of vulnerabilities…

Cybercriminals Hack Brazilian Government Servers to Host Phishing Sites

A Chinese-language group is compromising government and education sites to create a reverse-proxy network with gambling-themed sites.

WeChat Zero-Click Worm Took Over Accounts on iPhone and Android via Incoming Calls

Researchers at the security firm Calif have built a worm that takes over a WeChat account via an incoming call and demonstrated it spreading among three test phones. The person being called does not have to answer or touch their phone for it to work, but the caller must already be one of their WeChat contacts. Calif reported the flaw to Tencent in July and says the company has since

What It Took to Reach 1 Billion Build Manifests

In the last six months, Chainguard doubled its output from 500 million to more than 1 billion container build manifests. We also surpassed 3,000 unique container images and 675,000 image versions in our catalog. Those are the headline numbers, but I want to share what's actually behind them. The number itself is less interesting than the system that produced it, and why we had to fundamentally

FreeIPA Flaw Chain Lets Anonymous Clients Create Reusable Administrator Credentials

A flaw in FreeIPA lets a client that has never logged in create a Kerberos identity of its own choosing in the directory and end up in the administrators group, Red Hat says. FreeIPA is the system that determines who may log in across a Linux domain and maintains all identities in a 389 Directory Server database accessed via LDAP. The attack needs a second flaw in that database software. The

Adobe Patches Magento Zero-Day Exploited to Deploy Rust Backdoor and PHP Web Shell

Adobe on Monday released security patches to address a maximum-severity flaw impacting Adobe Commerce and Magento Open Source that has come under active exploitation in the wild. The vulnerability, now tracked as CVE-2026-75650 (CVSS score: 10.0), has been codenamed StyleSmuggler by Sansec, which discovered zero-day exploitation starting September 4, 2026. "This update resolves a critical

BengalSEO Poisons Bing Search Results to Deliver MayaBot and Tech Support Scams

Cybersecurity researchers have disclosed details of a sprawling search engine optimization (SEO) poisoning campaign that paves the way for malware deployment and tech support scams. The campaign, discovered by the DFIR Report in March 2026, has been codenamed BengalSEO. It has operated out of the Indian state of Rajasthan since at least 2015, driven by two IT service providers named WeConnect

Grindr to Pay £26 Million to Settle U.K. Claims Over HIV Status Data Sharing

Online dating app Grindr has opted to pay £26 million ($35.1 million) to settle a lawsuit in the U.K. over allegations that it shared users' personal information, including their HIV status, with third-parties. Grindr, which is the largest LGBTQ+ dating app, was sued in April 2024, accusing it of violating U.K. privacy laws by sharing sensitive data for commercial purposes such as advertising.

ISC Stormcast For Tuesday, September 8th, 2026 https://isc.sans.edu/podcastdetail/10084, (Tue, Sep 8th)

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

PEEP Turns Chrome and Edge Into Post-Compromise Backdoors for Host Command Execution

Cybersecurity researchers have disclosed details of a complex Chromium-based post-exploitation toolkit called PEEP that masquerades as a bookmarks extension for the web browser. "Requiring prior administrative or code execution access, its installer injects the extension directly into Chrome/Edge profiles, bypassing Web Store checks and user prompts by forging Chromium's own Secure Preferences

Fake IT Calls Target Executives in Microsoft 365 Data Theft and Extortion Attacks

Threat hunters have disclosed details of a widespread data theft and extortion threat cluster that's targeting Microsoft 365 and other software-as-a-service (SaaS) offerings through information technology (IT) help desk vishing, adversary-in-the-middle (AitM) token theft, and residential-proxy sign-ins. The activity, which mainly singles out directors, vice presidents, and other executive staff

⚡ Weekly Recap: Chrome 0-Day, Router Hijacks, Coder Supply Chain Attack and More

Turning off email images should at least stop the pictures. This week, attackers had a workaround: a scannable QR code built out of text. It still appears, even with images blocked. A small detail, but an annoying one if that was a precaution you were counting on. Elsewhere, a trusted software source delivered code that stole credentials, and a protocol designed for secure network management

Your Cloud Security Checklist Doesn't Work the Way You Think It Does

If managing security across multiple cloud providers wasn't hard enough, each one fails in a different way. For the 2026 Cloud Security Index, Intruder analyzed misconfiguration data from 3,000 organizations across AWS, Azure, and Google Cloud and found that risk profiles across providers have almost nothing in common. Here’s what the data looks like. How risk differs across cloud providers

Rogue ScreenConnect Clients Spread Four-Stage VBScript Chain to Newly Connected Hosts

Cybersecurity researchers have disclosed details of worm-like activity that abuses ConnectWise ScreenConnect to distribute a malicious Visual Basic Script (VBScript) payload to newly connected systems. According to Huntress, three unrelated incidents have been found to use diverse initial access methods, namely a Quick Assist tech-support scam, a phishing-delivered MSI installer, and a fake

Telerik UI Padding-Oracle Bug Chained to Unauthenticated RCE — Public Exploit Released

A TantoSec proof-of-concept turns an AES-CBC "padding oracle" in Telerik UI for ASP.NET AJAX into unauthenticated remote code execution — but only against applications in a specific non-default configuration, and Progress patched the chain in July. There are no confirmed reports of exploitation in the wild. Security firm TantoSec has published a working exploit chain targeting vulnerabilities

N-able Issues Fourth N-central Hotfix in Five Weeks for Unauthenticated RCE Flaw

Every on-premises N-central build below 2026.3.1.14 — including servers updated to Hotfix 3 a day earlier — needs Hotfix 4. N-able's incident notice says the flaw has been exploited in the wild; its release notes say that is unconfirmed. N-able has released its fourth hotfix in five weeks for the N-central remote monitoring and management (RMM) platform, this time for a

JSCeal Malware Can Bypass Google Authentication Using Stolen Session Cookies

Cybersecurity researchers have unpacked JSCeal, a sophisticated compiled V8 JavaScript (JSC) malware with credential harvesting, surveillance, and traffic-interception capabilities. "The payloads are protected with javascript-obfuscator, using multiple techniques including RC4-protected strings, control-flow flattening, proxy functions, and operation wrappers," Check Point Research said in a

Critical MikroTik Vulnerability - Patch Now, (Sun, Sep 6th)

Mikrotik released a patch late last week for an already-exploited vulnerability. The vulnerability allows an SSH authentication bypass and is already being exploited. At this point, assume compromise. Attackers have been adding new accounts to affected devices to maintain access after a patch is installed.

Attackers Hijack MikroTik Routers Through Internet-Exposed SSH Without Authentication

Attackers are exploiting MikroTik routers with their Secure Shell (SSH) remote-access service, which is reachable from the internet, to gain full administrative control without authentication, according to CERT Polska's attack warning, published on September 5. Successful attacks date to at least September 2. The Hacker News’s September 6 review of the warning found no victim count or

Four REVSTEALER-Linked Modules Disable Windows Update and Defender to Run a Crypto Miner

Elastic Security Labs has documented four previously unreported programs associated with REVSTEALER, an emerging Windows information stealer, that remain on an infected machine after the stealer deletes itself. One of them switches off Windows Update and Microsoft Defender before running a cryptocurrency miner. The company named the four programs ProManager, WinUpdate, SoftManager, and

Unpatched Magento and Adobe Commerce Zero-Day Exploited to Backdoor Online Stores

Attackers are exploiting a new unpatched vulnerability in Magento Open Source and Adobe Commerce that lets them run malicious code on an online store's server without logging in, Dutch e-commerce security company Sansec said in an advisory published on September 5. Sansec, which discovered the flaw and named it StyleSmuggler, said attacks started on September 4. "Sansec is publishing early

Attackers Breached JetBrains Cadence via Unpatched TeamCity, Extracting AWS Credentials

JetBrains is urging Cadence users to revoke and rotate all credentials following a security incident last month in which unidentified threat actors exploited a recently disclosed critical vulnerability in TeamCity to breach its own environment. "Cadence users should immediately revoke or rotate all credentials and secrets that may have been used to run their Cadence executions," JetBrains said.

Critical VMware Workstation and Fusion Flaw Lets VM Admins Execute Host Code

Broadcom has released security updates for two security flaws impacting VMware Workstation and Fusion, including one critical bug that could result in arbitrary code execution under certain conditions. The vulnerability, tracked as CVE-2026-59346 (CVSS score: 9.3), is an integer-overflow vulnerability that a local attacker with elevated privileges can exploit to run arbitrary code. "A

Trezor Says ShipMonk Breach Exposed 67,000 U.S. Customers' Data It Said Was Deleted

Hardware wallet manufacturer Trezor on Friday disclosed that another 67,000 customers from the U.S. have been impacted in a breach at its shipping provider ShipMonk. The exposed information includes customer names, email addresses, phone numbers, shipping addresses, and order numbers between November 2019 and August 2021. The breach does not affect the security of the company's hardware wallets

Thousands of OpenAI Agents Quietly Turned an Abandoned Wiki Into Their Coordination Channel

A group of AI safety researchers says a fleet of autonomous agents that identified themselves as OpenAI systems left about 18,000 posts on a dormant 25-year-old German wiki between May and July 2026, using the site as a shared board to pool answers to a timed web task and pass around a way out of their sandbox. The activity was concentrated on DSEwiki, a German software developer wiki that runs

Attackers Exploit PaperCut Flaws to Steal Credentials From Schools and Universities

Threat actors are exploiting the newly disclosed PaperCut flaws to facilitate credential theft in attacks targeting the education sector in the U.S. and Europe. The Arctic Wolf Adversary Research Team said it observed attackers exploiting CVE-2026-81578 and CVE-2026-82078 – an authentication bypass and remote code execution chain – to conduct command execution and reconnaissance, as well as

numbat - AI agent observability, (Fri, Sep 4th)

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How to secure edge AI in customer-owned environments

As AI moves into customer-owned environments, organizations need new ways to verify the systems, software, and AI assets they trust before releasing sensitive data, credentials, and models. The post How to secure edge AI in customer-owned environments appeared first on Microsoft Security Blog .

Companies Have 6 Months to Prepare for Automated Attacks

Frontier AI models have already demonstrated they can autonomously — and in some cases, inadvertently — conduct end-to-end compromises, but the situation will become more urgent very soon.

Phishing Campaign Sends Millions of Emails Using Invisible Unicode to Evade Filters

Microsoft is alerting of a "high-volume phishing campaign" that's using invisible Unicode tag characters to bypass email filters. "Instead of using these characters to hide instructions from people while exposing them to AI models, the attacker used them to split financial lure words such as 'funding' to prevent email filters from parsing them," the Microsoft Security Research team said. The

PostgreSQL Fixes 12-Year-Old Logical Decoding Flaw Enabling Replication-Role Code Execution

PostgreSQL has released updates to address a security flaw that allows an account with the REPLICATION attribute to run arbitrary code as the operating-system user running the database server. The flaw, tracked as CVE-2026-6471 (CVSS score: 7.2), has been present since logical decoding was introduced in PostgreSQL 9.4 in 2014. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are

New Ted Backdoor Hides Inside Victims' Own HAProxy Builds to Intercept Web Traffic

A previously undocumented Linux toolkit has been found compiled directly into the trojanized HAProxy load balancers of two South Korean organizations, where it intercepted web traffic and served altered pages to selected visitors. The attackers named the implant ted in debug strings left in the binary. It is not a HAProxy vulnerability, and installing it requires code execution on the host and

AI Is Ending the Era of Hidden Vulnerabilities — Are Vendors Ready?

A tidal wave of bug reports is overwhelming software vendors, exposing secure-by-design failures and creating disclosure bottlenecks.

Insurers Search for Answers to Rein in Rogue AI

As incidents of unintended harm caused by rogue AI agents mount, CISOs and insurance firms are figuring out how to handle the fallout.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-85046 Google Chromium V8 Type Confusion Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian…

Over 440,000 Exploit Attempts Target Super Forms and Elementor Pro RCE Flaws

Threat actors are exploiting two critical security flaws in WordPress plugins Super Forms and Elementor Pro, according to findings from Wordfence. The vulnerabilities in question are - CVE-2026-14894 (CVSS score: 9.8) - A missing file type validation vulnerability in Super Forms – Drag & Drop Form Builder that allows unauthenticated attackers to upload files of any type, including

Plex Urges Immediate Updates After Patching Multiple Undisclosed Security Flaws

Plex is urging users to update their instances to the latest version following the release of an update that patches multiple security flaws. The fixes are available in Plex Media Server 1.43.3 and Plex Desktop 1.115.0. The streaming media service did not elaborate on what those issues are, but said CVE identifiers have been requested for them. "We recommend all server owners and Desktop users

Google Releases Chrome Update to Patch Actively Exploited V8 Zero-Day

Google on Thursday released security updates to patch 12 vulnerabilities, including one that has come under active exploitation in the wild. The high-severity vulnerability, tracked as CVE-2026-85046 (CVSS score: 8.8), has been described as a type confusion bug in V8, Chrome's JavaScript and WebAssembly engine. "Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote

GPT-6 Astra Scores 100% on ExploitBench as OpenAI Blocks PoC Exploit Requests

OpenAI on Thursday officially unveiled GPT‑6 Astra, which it described as the "world's most intelligent and aligned model." The development comes days after the artificial intelligence (AI) company said the model had reached the "Critical" cybersecurity capability threshold under its Preparedness Framework. "Astra is state-of-the-art on computer use, browsing, software engineering,

ISC Stormcast For Friday, September 4th, 2026 https://isc.sans.edu/podcastdetail/10082, (Fri, Sep 4th)

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Introducing context-aware vulnerability discovery and remediation with Cloudflare Managed Defense and OpenAI Daybreak models

Use production traffic and security signals to prioritize findings, prepare edge mitigations when safe, and propose code patches. By combining WAF data with OpenAI Daybreak models, Vulnerability Discovery and Remediation helps teams identify and patch the most critical threats first.

Large Enterprises Targeted in Fake Merger & Acquisition Scams

Threat actors behind the "Phantom Deal" campaign are studying companies in extreme detail, aiming to dupe midlevel employees into initiating large financial transfers.