CVE-2026-79664
HIGH
NVD
CVSS Score
7.4
Severity
HIGH
Published
Aug 25, 2026
Vendor
unknown
Description
Ech0 before 4.7.3 fails to properly revoke access tokens created with never-expire option, allowing attackers to maintain perpetual authenticated access after token theft. Three independent revocation mechanisms fail: logout panics on nil ExpiresAt field, RevokeToken skips when remainTTL is zero, and admin delete does not blacklist the JTI, leaving stolen tokens cryptographically valid until JWT secret rotation.