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 voice-call realtime WebSocket 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.