Vulnerability Description
OpenClaw versions 2026.4.9 before 2026.4.10 contain a denial of service vulnerability in the voice-call realtime WebSocket path that accepts oversized frames without proper validation. Remote attackers can send oversized WebSocket frames to cause service unavailability for deployments exposing the webhook path.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/afadb7dae6738819ad9c7d2597ace0516957
- https://github.com/openclaw/openclaw/security/advisories/GHSA-vw3h-q6xq-jjm5
- https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-oversized-we
FAQ
What is CVE-2026-42437?
CVE-2026-42437 is a vulnerability with a CVSS score of 7.5 (HIGH). OpenClaw versions 2026.4.9 before 2026.4.10 contain a denial of service vulnerability in the voice-call realtime WebSocket path that accepts oversized frames without proper validation. Remote attacker...
How severe is CVE-2026-42437?
CVE-2026-42437 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-2026-42437?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.