CVE-2026-53776 | BDVDB-2026-341065 Detail

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.

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Exploit#

History#

1. Version 12026-06-16Record published in the CVE List.
2. Version 22026-11-08Most recent update recorded in the CVE List.