High severity7.5GHSA Advisory· Published May 5, 2026· Updated May 26, 2026
CVE-2026-42437
CVE-2026-42437
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
openclawnpm | >= 2026.4.9, < 2026.4.10 | 2026.4.10 |
Affected products
2Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-vw3h-q6xq-jjm5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-42437ghsaADVISORY
- github.com/openclaw/openclaw/commit/afadb7dae6738819ad9c7d2597ace0516957d20envdWEB
- github.com/openclaw/openclaw/pull/63890ghsaWEB
- github.com/openclaw/openclaw/security/advisories/GHSA-vw3h-q6xq-jjm5nvdWEB
- www.vulncheck.com/advisories/openclaw-denial-of-service-via-oversized-websocket-frames-in-voice-call-realtime-pathnvdWEB
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