{"id":"CVE-2026-111384","title":"Nezha 1.0.0 before 2.3.15 Memory Exhaustion via File Manager WebSocket","summary":"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…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-770"],"vendor":"nezhahq","product":"nezha","affected":["nezha >= 1.0.0 < 2.3.15"],"published":"2026-10-16","updated":"2026-10-16","sourceUpdated":"2026-10-16T01:17:53.095Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111384","references":[{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-7242-982f-83p9","label":"GitHub Security Advisory (GHSA-7242-982f-83p9)"},{"url":"https://github.com/nezhahq/nezha/commit/36b742a7e9a81ed782363dd19efd77b7030fbd0f","label":"Patch Commit"},{"url":"https://www.vulncheck.com/advisories/nezha-1.0.0-before-2.3.15-memory-exhaustion-via-file-manager-websocket","label":"VulnCheck Advisory: Nezha 1.0.0 before 2.3.15 Memory Exhaustion via File Manager WebSocket"}],"tags":["cve.org"],"ingestedAt":"2026-10-16T01:55:57.990Z","slug":"CVE-2026-111384","body":"## Overview\n\nNezha 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.\n\n## Affected\n\n- `nezha >= 1.0.0 < 2.3.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}