Cybersecurity News

OpenAI is testing a new always-on assistant called "o", and references to the unannounced feature briefly showed up on the company's website. [...]

Citrix has confirmed that two critical NetScaler remote code execution vulnerabilities, tracked as CVE-2026-88771 and CVE-2026-88772, are being exploited in attacks and that it has released security updates to fix the flaws. [...]

Wireshark release 4.6.9 fixes 19 vulnerabilities and 16 bugs.

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. [...]

Anthropic has just announced a new Claude Marketplace, and it brings all AI-related tools into one place, including plugins, connectors, agents, and more. [...]

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-88771 Citrix NetScaler Improper Input Validation Vulnerability CVE-2026-88772 Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose 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 Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, wh

CISA is amplifying Citrix’s disclosure of eight new vulnerabilities affecting Citrix NetScaler ADC and Citrix NetScaler Gateway products: CVE-2026-88771, CVE-2026-88772, CVE-2026-88773, CVE-2026-88774, CVE-2026-88775, CVE-2026-88776, CVE-2026-88777, and CVE-2026-88778.  CISA has added CVE-2026-88771 and CVE-2026-88772 to its Known Exploited Vulnerabilities (KEV) Catalog. Both are critical, zero-day vulnerabilities that can independently enable remote code execution. CISA has received reports and partner threat intelligence confirming that threat actors are actively exploiting these vulnerabilities globally. Because updating Citrix NetScaler appliances can be complex and may require downtime, CISA is issuing this Alert to help organizations assess exposure, prioritize mitigation, and account for these vulnerabilities into their risk-management activities.  Given the potential consequences of successful exploitation and the fact that malicious actors are exploiting at least some of t

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.

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 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. [...]

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.

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.

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. [...]

Cameron Wagenius was involved in some of the most high-profile attacks of 2024 while on active duty. The post Army soldier sentenced for spree of attacks on AT&T, Snowflake and other major companies appeared first on CyberScoop.

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. [...]

A cross-site request forgery (CSRF) vulnerability in the Elementor plugin for WordPress could allow an unauthenticated attacker to create administrator accounts. [...]

Three justices wrote in a dissent that longstanding privacy laws protecting sensitive personal data held by the government should prevent the use of the database. The post Supreme Court permits states to use SAVE database for citizenship checks appeared first on CyberScoop.

The Cybersecurity and Infrastructure Security Agency (CISA) warns that hackers are exploiting a critical authentication bypass vulnerability (CVE-2026-5430) affecting multiple products from enterprise software provider WSO2. [...]

Anthropic now allows you to run Claude Code via cloud sessions without signing up for the research preview, and it's offering up to $250 in free usage credits, so more users can give it a try. [...]

Microsoft details JADEPUFFER-linked Azure reconnaissance, resource deletion, and credential access using compromised service principals, identifying the activity as associated with Storm-3168 and providing guidance for defenders. The post Storm-3168: Agentic-driven cloud attacks using compromised service principals appeared first on Microsoft Security Blog.

Microsoft details JADEPUFFER-linked Azure reconnaissance, resource deletion, and credential access using compromised service principals, identifying the activity as associated with Storm-3168 and providing guidance for defenders. The post Storm-3168: Agentic-driven cloud attacks using compromised service principals appeared first on Microsoft Security Blog.

Noteworthy stories that might have slipped under the radar: BragJack attack against browser AI assistants, TDengine flaw threatens industrial telemetry uptime, Ubuntu update overhaul. The post In Other News: Clop Leak Site Takeover, Docker Botnet Hunts AI Keys, Water Utility Exposure appeared first on SecurityWeek.

The platform is adding new checks as AI makes profiles easier to forge. But scammers can still invent a company to recruit for.

Kothamine uses a legitimate Tailscale tool to receive attackers’ commands through an encrypted connection with no malicious domain to block.