CVE-2026-79669

MEDIUM 4.3

Ech0 before 4.4.3 Missing Authorization on System Logs

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	lin-snow
Product	ech0
Published	Aug 25, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

lin-snow / Ech0

0 < 4.4.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/lin-snow/Ech0/security/advisories/GHSA-w8jj-cwmc-wgq2 vulncheck.com: https://www.vulncheck.com/advisories/ech0-before-missing-authorization-on-system-logs

Credits

🔍 offset