CVE-2026-79669CWE-862broken-access-control

CVE-2026-79669

Medium · published August 25, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
10.7
In the wild
Unconfirmed
What it is

Ech0 before 4.4.3 lacks authorization checks on system log endpoints allowing any authenticated non-admin user to read and stream all server logs. Attackers can access historical logs and real-time log streams via GET /api/system/logs, GET /api/system/logs/stream, and WS /ws/system/logs to gather reconnaissance data including internal file paths, error stack traces, and application state.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00210 · 10.7th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-08-25T16:16Z
References (3)
https://github.com/lin-snow/Ech0/security/advisories/GHSA-w8jj-cwmc-wgq2 · [email protected]https://www.vulncheck.com/advisories/ech0-before-missing-authorization-on-system-logs · [email protected]https://github.com/lin-snow/Ech0/security/advisories/GHSA-w8jj-cwmc-wgq2 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 27 AUG 06:46Z
    EPSS moved — → 0%
    epss
  • 25 AUG 11:33Z
    Ech0 before 4.4.3 Missing Authorization on System Logs
    cvelistv5