CVE-2026-53776

Perry before 0.5.1166 contains a JWT validation vulnerability in the verify_decode helper that sets validate_exp = false unconditionally, enabling token expiration bypass. Attackers with a previously issued bearer token can present expired tokens to jwt.verify() calls and retain access, undermini...

CVE-2026-53776 Perry < 0.5.1166 JWT Expiration Bypass via verify_decode

Perry before 0.5.1166 contains a JWT validation vulnerability that allows remote attackers to bypass token expiration by exploiting the unconditional setting of validateexp = false in the verifydecode helper within the stdlib JWT verification path. Attackers in possession of a previously issued...