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    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.

    Published:Aug 25, 2026
    Last Modified:Aug 25, 2026
    EPS:Aug 25, 2026
    EPSS Score:
    CVSS Score:7.4

    Affected Products

    Vendor
    Ech0
    Product
    Ech0
    Vendor
    Lin-snow
    Product
    Ech0

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-613 Insufficient Session Expiration

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-79669 (CVSS 5.3) — Ech0 before 4.4.3 lacks authorization checks on system log endpoints allowing any authenticated non-admin user…
    CVE-2026-79668 (CVSS 6.9) — Ech0 before 4.7.3 contains an authentication bypass vulnerability in the PUT /api/echo/like/:id endpoint that …
    CVE-2026-79667 (CVSS 7.2) — Ech0 version 4.3.4 and earlier fails to reliably enforce scoped access token (least-privilege) restrictions on…
    CVE-2026-79666 (CVSS 7.1) — Ech0 before 4.4.3 fails to enforce administrator authorization on dashboard log endpoints, allowing any authen…
    CVE-2026-79665 (CVSS 8.7) — Ech0 before 4.5.1 contains an authorization bypass vulnerability where session tokens skip scope validation in…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High