# CVE-2026-41405

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

## Description

OpenClaw before 2026.3.31 parses MS Teams webhook request bodies before performing JWT validation, allowing unauthenticated attackers to trigger resource exhaustion. Remote attackers can send malicious Teams webhook payloads to exhaust server resources by bypassing authentication checks.

## Key facts

- **CVE ID:** CVE-2026-41405
- **Published:** 2026-04-28
- **CVSS severity:** HIGH
- **CVSS base score:** 7.5
- **CWE codes:** CWE-408

## Affected products

- `openclaw:openclaw`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41405

## Citation

> AI Analytics. CVE-2026-41405. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-41405. Derived from NIST NVD. Licensed CC0.

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