Nezha 1.0.0 before 2.3.15 contains a memory exhaustion vulnerability in the dashboard file manager WebSocket endpoint because fmStream never calls SetReadLimit, leaving message size unbounded. Authenticated users with file manager scopes can send one oversized binary message to /api/v1/ws/file/:id, triggering an OOM kill that drops all agent monitoring.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 7.1NVD modified 2026-10-16 03:18
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 4
- https://github.com/nezhahq/nezha/commit/36b742a7e9a81ed782363dd19efd77b7030fbd0f
- https://github.com/nezhahq/nezha/security/advisories/GHSA-7242-982f-83p9
- https://www.vulncheck.com/advisories/nezha-1.0.0-before-2.3.15-memory-exhaustion-via-file-manager-websocket
- https://github.com/nezhahq/nezha/security/advisories/GHSA-7242-982f-83p9