The AI giant also announced that Project Glasswing partners are being given access to the upgraded Mythos 5.
The post Anthropic Launches Claude Fable 5: Mythos-Class AI With Cybersecurity Guardrails appeared first on SecurityWeek.
OpenSSL Patches High-Severity Vulnerability Found With AI
A total of 18 vulnerabilities have been patched in the latest OpenSSL releases, including many that were potentially discovered by AI.
The post OpenSSL Patches High-Severity Vulnerability Found With AI appeared first on SecurityWeek.
Veeam Backup & Replication RCE Flaw Lets Domain Users Run Remote Code
Veeam has released security patches to address a critical flaw in its Backup & Replication software that could result in remote code execution.
Tracked as CVE-2026-44963, the vulnerability carries a CVSS score of 9.4 out of a maximum of 10.0.
“A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user,” Veeam said in a Tuesday advisory.
It
Microsoft Restores Some GitHub Repos, Keeps Others Offline as Miasma Probe Continues
Microsoft on Monday confirmed that it temporarily removed some GitHub repositories in response to a recent security incident that led to 73 of its open-source projects being compromised to inject an information stealer into the code.
“Our priority is to protect customers and the broader ecosystem,” a Microsoft spokesperson told The Hacker News via email. “We temporarily removed some
XBOW tests Anthropic’s Mythos Preview for offensive security
Anthropic’s Mythos Preview was highly effective at finding vulnerability candidates, especially when analyzing source code. XBOW explores how the model performed across exploit discovery, reverse engineering, and live-site validation. […]
GitHub disables Microsoft repos pushing password-stealing malware
Microsoft removed 73 repositories across its Azure, microsoft, Azure-Samples, and MicrosoftDocs organizations on GitHub, disrupting continuous integration pipelines. […]
Claude Mythos Turns N-Days Into N-Hours With Rapid Exploit Creation
Public LLM models with safeguards turned off can also build working exploits, increasing patch gap risks.
The post Claude Mythos Turns N-Days Into N-Hours With Rapid Exploit Creation appeared first on SecurityWeek.
New Veeam vulnerability exposes backup servers to RCE attacks
Veeam has released security updates to patch a critical Backup & Replication security flaw that can be exploited to gain remote code execution (RCE) on domain-joined backup servers. […]
New Platform Uses Cryptographic Invisibility to Protect AI-Built Applications
Atsign’s AI Architect applies cryptographic protections to agentic software development, aiming to prevent attackers from exploiting vulnerabilities by making application identities effectively invisible.
The post New Platform Uses Cryptographic Invisibility to Protect AI-Built Applications appeared first on SecurityWeek.
WinRAR Flaw Exploited by Russia-Aligned Groups to Deploy Stealers in Ukraine
Two Russia-aligned cyber attack campaigns have continued to exploit a security flaw in WinRAR to target Ukrainian organisations, almost a year after patches for the vulnerability were released.
The activity has been attributed by Trend Micro to Earth Dahu (aka Gamaredon) and SHADOW-EARTH-066 (aka UAC-0226). It involves the exploitation of CVE-2025-8088, a path traversal flaw that allows an