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PyJWT <= 2.11.0 does not validate the `crit` (Critical) Header Parameter per RFC 7515 §4.1.11, allowing tokens with unknown critical extensions to be accepted. Fixed in 2.12.0. GHSA-752w-5fwx-jx9f / CVE-2026-32597 (CVSS 7.5 HIGH) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
PyJWTfrom 2.10.1 to 2.12.1 inpoetry.lockredisextraVulnerability: PyJWT <= 2.11.0 does not validate the
crit(Critical) Header Parameter per RFC 7515 §4.1.11. Tokens with unknown critical extensions are silently accepted instead of rejected, enabling security policy bypass (MFA, token binding, scope restrictions).Closes https://github.com/Otoru/Genesis/security/dependabot/10
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