CVE-2026-79664
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.1
- CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.22%
- CWE
- CWE-613
- Published
- 2026-08-25
- Last modified
- 2026-08-25
Affected products
- lin-snow Ech0
- lin-snow Ech0
Weakness type
Related vulnerabilities
- CVE-2026-87014 — Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes
- CVE-2026-80174 — Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to...
- CVE-2026-55250 — Maravel-Framework Token Replay Vulnerability via Premature JWT Blacklist Eviction in Tagged Caches
- CVE-2026-86215 — Mstfakts College-Management-System Logout server.php session expiration
- CVE-2026-55513 — nebula-mesh: Web UI host creation ignores configured enrollment token TTL and mints 24-hour bearer enrollment tokens
- CVE-2026-61608 — SolidInvoice's user invitation tokens have no expiry, allowing indefinite unauthorized company access via leaked or old invitation links
- CVE-2026-84480 — WWBN AVideo Password Recovery Token Expiration Bypass
- CVE-2026-84203 — Memos 0.26.0 through 0.30.0 Insufficient Session Expiration on Password Change