Vulnerability · Published Oct 16, 2026 · Assigned by VulnCheck
CVE-2026-111384Nezha 1.0.0 before 2.3.15 Memory Exhaustion via File Manager WebSocket
Medium 6.5
In plain English
A medium-severity resource allocation without limits in nezha from nezhahq. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 70.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- GitHub Security Advisory (GHSA-7242-982f-83p9) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: Nezha 1.0.0 before 2.3.15 Memory Exhaustion via File Manager WebSocket third-party-advisory