CVE-2026-111383
Nezha 2.0.13 before 2.3.15 Denial of Service via /api/v1/ws/transfer WebSocket
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 16, 2026
- Updated
- Oct 16, 2026
- Reserved
- Oct 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | 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 | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
nezhanezhahq |
|
References
- GitHub Security Advisory (GHSA-ch6h-w872-77mx)vendor-advisory
- Patch Commitpatch
- VulnCheck Advisory: Nezha 2.0.13 before 2.3.15 Denial of Service via /api/v1/ws/transfer WebSocketthird-party-advisory
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