CVE-2026-79665

EUVD-2026-65449
Ech0 before 4.5.1 contains an authorization bypass vulnerability where session tokens skip scope validation in RequireScopes middleware, allowing logged-in non-admin users to access admin endpoints. Attackers can read system logs, visitor statistics, user emails, and subscribe to live WebSocket logs by sending authenticated session tokens to unprotected endpoints.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://github.com/lin-snow/Ech0/security/advisories/GHSA-hmmq-qh6g-6wgh
https://www.vulncheck.com/advisories/ech0-before-authorization-bypass-via-session-tokens
https://github.com/lin-snow/Ech0/security/advisories/GHSA-hmmq-qh6g-6wgh