CVE-2026-42437

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H                                    

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.

Vulnerability Details

Published Date

May 05, 2026

Last Modified

May 05, 2026

CWE ID

CWE-770

Source

NVD

Vendor

OpenClaw

Product

OpenClaw

External References

https://github.com/openclaw/openclaw/commit/afadb7dae6738819ad9c7d2597ace0516957d20e
https://github.com/openclaw/openclaw/security/advisories/GHSA-vw3h-q6xq-jjm5
https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-oversized-websocket-frames-in-voice-call-realtime-path

CVE-2026-42437

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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