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

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

https://cvefeed.io/rssfeed/latest.atom / Tue, 06/16/2026 - 20:45
CVE ID :CVE-2026-53776
Published : June 16, 2026, 5:16 p.m. | 21 minutes ago
Description :Perry before 0.5.1166 contains a JWT validation vulnerability that allows remote attackers to bypass token expiration by exploiting the unconditional setting of validate_exp = false in the verify_decode helper within the stdlib JWT verification path. Attackers in possession of a previously issued bearer token can present expired tokens to any jwt.verify() call and retain authenticated access indefinitely, bypassing force-expired sessions such as user logout or administrative revocation.
Severity: 9.3 | CRITICAL
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