CVE-2026-42437

7.5 HIGH
Published: May 05, 2026 Modified: May 26, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/openclaw/openclaw/commit/afadb7dae6738819ad9c7d2597ace0516957d20e
Source: disclosure@vulncheck.com
https://github.com/openclaw/openclaw/security/advisories/GHSA-vw3h-q6xq-jjm5
Source: disclosure@vulncheck.com
https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-oversized-websocket-frames-in-voice-call-realtime-path
Source: disclosure@vulncheck.com

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.4%
33th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-770

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