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CVE-2026-79666GHSA-CP79-9MWR-WR49GO-2026-5328

Ech0 before 4.4.3 Missing Authorization via dashboard log endpoints

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.4.3, 4.3.5
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

Ech0 before 4.4.3 fails to enforce administrator authorization on dashboard log endpoints, allowing any authenticated user to access system logs. Attackers with valid user sessions can query GET /api/system/logs and subscribe to SSE and WebSocket log streams to retrieve sensitive operational data including file paths, stack traces, and internal URLs.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • lin-snow Ech0

    fixed in 4.4.3

  • github.com/lin-snow/ech0Go

    fixed in 4.3.5

  • github.com/lin-snow/ech0Go

    All versions

References 2

GitHub · lin-snow/Ech0

vulncheck.com