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Advisories

Nezha 1.0.0 before 2.3.15 Memory Exhaustion via File Manager WebSocket

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Severity
high
Date
Affecting

  • nezha >= 1.0.0, < 2.3.15

CWE
  • CWE-770 Allocation of Resources Without Limits or Throttling
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
manus-pi, manus-use
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.

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