CVE-2026-79665CWE-862broken-access-control

CVE-2026-79665

High · published August 25, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
42.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00511 · 42.7th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-08-25T16:16Z
References (3)
https://github.com/lin-snow/Ech0/security/advisories/GHSA-hmmq-qh6g-6wgh · [email protected]https://www.vulncheck.com/advisories/ech0-before-authorization-bypass-via-session-tokens · [email protected]https://github.com/lin-snow/Ech0/security/advisories/GHSA-hmmq-qh6g-6wgh · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 27 AUG 06:46Z
    EPSS moved — → 0%
    epss
  • 25 AUG 11:33Z
    Ech0 before 4.5.1 Authorization Bypass via Session Tokens
    cvelistv5