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GHSA-W7VC-732C-9M39 PyJWT: Unauthenticated DoS via unbounded Base64URL decoding of unused payload segment in b64=false detached JWS

🗓️ 15 Jun 2026 19:29:12Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

Unauthenticated denial of service in PyJWT when verifying detached JWS with base64url decoding before detached-payload handling.

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16 Jun 2026 15:44Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.15.3
EPSS0.00288
4