Cloudflare has fixed a vulnerability in Containers and Sandboxes that allowed customers with a Workers Paid account to recover residual data from other customers' containers on the same physical host. [...]
A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including international press. OpenAI Agents Accessed US Government Websites Without Authorization Exploit.in Database Reveals the Roots of Today’s Ransomware Ecosystem […]
Anthropic has just announced a new Claude Marketplace, and it brings all AI-related tools into one place, including plugins, connectors, agents, and more. [...]
Kosovo national Ardit Kutleshi pleaded guilty to running Rydox, a cybercrime marketplace that sold stolen identities and credentials for years. Ardit Kutleshi, 28 years old and a citizen of Kosovo, pleaded guilty last week to building and running the cybercrime marketplace Rydox. The Rydox marketplace has been active since February 2016; it facilitated over 7,600 […]
CISA added CVE-2026-65660 to its KEV catalog, giving federal agencies a patching deadline of September 28. The post Microsoft SharePoint Flaw CVE-2026-65660 Now Exploited in Attacks appeared first on SecurityWeek.
Two critical vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway that allow remote code execution have been exploited in the wild, Citrix confirmed on September 27. It released fixes for both, along with six other flaws. One of the two affects every deployment on an affected version, including those in the default configuration. The bulletin came a day after security firm watchTowr
CVE-2026-88771 and CVE-2026-88772, two zero-day vulnerabilities in Citrix NetScaler, have been confirmed as exploited in the wild. Citrix released patches on September 27, 2026. On October 3, Citrix disclosed CVE-2026-88779, an exploited denial of service flaw affecting SAML deployments. Fixing it requires newer builds.Change logUpdate October 4: On October 3, Citrix published security bulletin CTX697174 with fixed versions for CVE-2026-88779, an exploited denial of service vulnerability affect…
The ShinyHunters extortion gang is using a URL-encoding trick to bypass web application firewall rules that mitigate the Oracle PeopleSoft CVE-2026-35273 flaw, allowing the threat actors to resume widespread exploitation of a flaw on vulnerable servers. [...]
The Psychedelic Stealer malware distributed via compromised Ukrainian websites using ClickFix-style Cloudflare verification checks is part of a wider malware-as-a-service (MaaS) platform called Lunex. The new findings come from Ontinue, which described the activity as a four-stage attack chain aimed at targeting Ukrainian-speaking users. "The attack chain begins with a fake CAPTCHA page and
The US and China agreed to set up a communication mechanism for artificial intelligence-related incidents. The post China and US Agree to Establish AI Safety Channel and Continue Trade and Military Talks appeared first on SecurityWeek.
Anthropic's Claude Opus 5.5 appears to be changing how it writes, with new analysis showing fewer obvious AI writing patterns, shorter sentences, and simpler wording compared with Opus 5. [...]
Microsoft has paused the rollout of the KB5002907 Microsoft 365 update after users report that it deactivated, or in some cases completely removed, perpetual Office 2016 and Office 2019 installations. [...]
OpenAI is investigating AI agents that accessed US gov websites without authorization, including an attempted Education Department hack. OpenAI disclosed on Friday that its AI agents had interacted with US government websites in ways nobody planned or authorized, as part of what the company is calling an ongoing review of unexpected model behavior. The affected […]
Exploit.in data shows how a 2005 cybercrime forum helped shape today’s ransomware ecosystem, with users and practices surviving for decades. Ransomnews researcher Dancho Danchev dug up a database dump of Exploit.in covering its first three years, from February 2005 to May 2008, and the numbers inside it tell a story about Russian cybercrime that enforcement […]
Two third-party GitHub Actions previously compromised in a Mini Shai-Hulud campaign were re-enabled by their maintainer and remained accessible for more than a week despite still pointing to malicious code. [...]
OpenAI says its AI agents uploaded user-provided images to third-party image-hosting services while carrying out research and evaluation tasks. [...]
The Windows botnet relies on AI to maintain persistence, using xAI Grok to choose from predefined actions. The post New x47.c Windows Botnet Weaponizes xAI Grok, AI API Draining appeared first on SecurityWeek.
Google is warning of renewed mass exploitation of a known security vulnerability in Oracle PeopleSoft as part of a campaign targeting multiple sectors globally. The ShinyHunters-linked activity involves the weaponization of CVE-2026-35273 (CVSS score: 9.8), a critical security flaw that could result in unauthenticated remote code execution. The vulnerability was first exploited as a zero-day
The way we talk about AI agents is shifting, and the way we implement them requires an even more fundamental shift. While earlier discourse focused on how quickly organizations could stand up agents and how much productivity they could promise, a string of recent incidents, including a widely discussed intrusion at Hugging Face during an evaluation of OpenAI agents, has spurred organizations to
OpenAI’s CEO said there is an “extensive and ongoing review related to our agents’ use of internet access during training and evaluation.” The post OpenAI Says Its Models Engaged With US Government Websites in New Model Misbehavior Disclosure appeared first on SecurityWeek.
Details have emerged about a high-severity security flaw in the Elementor Website Builder WordPress plugin that could be exploited by an unauthenticated attacker to create rogue administrator accounts and take control of a site. The cross-site request forgery (CSRF) vulnerability, which has yet to be assigned a CVE identifier, carries a CVSS score of 8.8 out of 10.0. It only affects versions
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added two security flaws impacting Microsoft SharePoint and Mikrotik RouterOS to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerabilities in question are as follows - CVE-2026-65660 (CVSS score: 8.8) - A code injection vulnerability in Microsoft Office SharePoint
Kiteworks (formerly Accellion) is urging customers to shut down their systems as a precautionary measure for nine hours over the weekend after it received threat intelligence about an imminent cyber attack. "Kiteworks received credible threat intelligence from federal intelligence authorities indicating that a threat actor may attempt to target some Kiteworks systems," said Frank Balonis, Chief
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds WordPress flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a WordPress Core flaw, tracked as CVE-2026-87902 (CVSS score of 9.2), to its Known Exploited Vulnerabilities (KEV) catalog. CVE-2026-87902 allows an unauthenticated attacker to make the get_page_template() function include a readable local […]
Unit 42 security experts address critical cybersecurity misconceptions, offering practical insights to help your organization reinforce its enterprise defenses. The post 3 Consulting Myths Debunked by Unit 42 Experts appeared first on Unit 42.
A U.S. Army soldier who pleaded guilty to hacking into multiple telecommunications companies and stealing mobile call and text metadata for more than 100 million AT&T customers in 2024 was sentenced to 70 months in federal prison today and ordered to pay nearly $300,000 in restitution to victims.
Secure file-sharing software company Kiteworks is urging customers worldwide to temporarily shut down their servers on Saturday for a six-hour window after receiving threat intelligence warning of a potentially imminent cyberattack. [...]
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Microsoft SharePoint and Mikrotik RouterOS flaws flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: CVE-2026-65660 is a code-injection vulnerability in Microsoft SharePoint Server that allows an authenticated, low-privileged attacker to execute arbitrary […]
The Clop ransomware gang has moved its data leak site to a new Tor address after confirming its previous server was compromised and defaced through an unpatched Grav CMS flaw that BleepingComputer has learned is an unauthenticated path traversal vulnerability. [...]
