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PyJWT: Unauthenticated DoS via unbounded Base64URL decoding of unused payload segment in b64=false detached JWS

🗓️ 15 Jun 2026 19:29:12Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 6 Views

PyJWT DoS via unbounded Base64URL decoding of unused payload in detached JWS when b64 false.

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15 Jun 2026 19:29Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.15.3
EPSS0.0025
6