CVE-2026-79669

Summary

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.

Affected Software

Weaknesses

• CWE-862: Missing Authorization

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/lin-snow/Ech0/security/advisories/GHSA-w8jj-cwmc-wgq2

References

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

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