CVE-2026-111383

Medium

Description

Nezha from 2.0.13 before 2.3.15 contains a resource exhaustion vulnerability that allows authenticated users to open unbounded concurrent connections to the /api/v1/ws/transfer WebSocket endpoint. Attackers can hold thousands of subscriptions created by ServerTransferClass.Subscribe without limits, exhausting file descriptors, memory, and goroutines and blocking agent gRPC reconnections.

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-ch6h-w872-77mx

Affected products

Product	Affected versions	Fixed in
nezhahq nezha	2.0.13 ≤ v < 2.3.15	2.3.15

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