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Claude Mythos Preview stories

May 25, 2026

Anthropic's Claude Mythos AI Model Identifies 23,000 Potential Vulnerabilities in 1,000+ Open Source Projects

Anthropic announced that its Claude Mythos Preview AI model has detected over 23,000 potential security vulnerabilities across more than 1,000 open source software projects, representing a significant automated security audit of the OSS ecosystem.

May 25, 2026·3 sources
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Top claims

  • ▪As of late May 2026, 75 issues with a critical or high severity rating discovered by Mythos have been patched by vendors.
  • ▪The confirmation rate of Mythos's findings is approximately 7.5%, considered high for automated scanning at such a large scale.
  • ▪Anthropic is limiting access to Mythos Preview to roughly 50 organizations through 'Project Glasswing' to prevent potential misuse.

Topics

AI securityAI tools & productsAI for developersSoftware securityOpen-source AI

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