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Anthropic publishes Claude Mythos report identifying 6,202 severe and high vulnerabilities in 2026, exceeding the prior four years' combined annual totals

Report processed 23,019 candidates into 88 advisories.

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Original post

Claude Mythos alone is finding more vulnerabilities than were found from all sources combined in prior years 👀

5:22 PM · May 22, 2026 View on X
Anthropic publishes Claude Mythos report identifying 6,202 severe and high vulnerabilities in 2026, exceeding the prior four years' combined annual totals · Digg