Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.3.31 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/3834d47099dd13c8244ed6de8b9ea9855c55Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-p464-m8x6-vhv8Vendor Advisory
- https://www.vulncheck.com/advisories/openclaw-resource-exhaustion-via-unauthentiThird Party Advisory
FAQ
What is CVE-2026-41405?
CVE-2026-41405 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 maliciou...
How severe is CVE-2026-41405?
CVE-2026-41405 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41405?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.