EUVD-2026-37126

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...

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...

PT-2026-49727

Name of the Vulnerable Software and Affected Versions Perry versions prior to 0.5.1166 Description An issue in the JWT validation process allows remote attackers to bypass token expiration. This occurs because the verify decode helper within the stdlib JWT verification path unconditionally sets...