# CVE-2026-41399

> Vulnerability · severity: **HIGH** (CVSS 7.5).

## Description

OpenClaw before 2026.3.28 accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. Unauthenticated network attackers can exhaust socket and worker capacity to disrupt WebSocket availability for legitimate clients.

## Key facts

- **CVE ID:** CVE-2026-41399
- **Published:** 2026-04-28
- **CVSS severity:** HIGH
- **CVSS base score:** 7.5
- **CWE codes:** CWE-770

## Affected products

- `openclaw:openclaw`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41399

## Citation

> AI Analytics. CVE-2026-41399. Retrieved 2026-06-26 from https://api.ai-analytics.org/cve/CVE-2026-41399. Derived from NIST NVD. Licensed CC0.

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