CVE-2026-111384

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductNezha

PublishedOct 16, 2026

First seenOct 16, 2026

Weakness typeCWE-770Allocation of resources without limits

How to fix

Update

nezhahq nezha2.3.15 or later

Patches

github.com/nezhahq/nezha/commit/36b742a7e9a81ed782363dd19efd77b7030fbd0f

Vendor advisories

github.com/nezhahq/nezha/security/advisories/GHSA-7242-982f-83p9

Affected products

Product	Affected versions	Fixed in
nezhahq nezha	1.0.0 ≤ v < 2.3.15	2.3.15

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