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Anthropic to release Mythos-class models to the public

ID: d1bd9d11-173e-55e4-a02e-9ebc38ff69b0

STIX ID: report--d1bd9d11-173e-55e4-a02e-9ebc38ff69b0

Feed Name: The Register (Security)

Threat Score
70/100

Date Published: 2026-05-25

Date Updated: 2026-05-25

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Anthropic's Mythos model has scanned major open-source projects and identified approximately 23,019 flaws (about 6,202 high-or-critical), including a critical wolfSSL vulnerability that could enable certificate forgery; Anthropic is limiting Mythos access (Project Glasswing), performing coordinated disclosure and remediation, and warns that stronger safeguards are needed before a general release because such powerful bug-finding models could be weaponized, overwhelming maintainers and increasing the pace of exploited vulnerabilities.

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