CVE-2026-42437
OpenClaw 2026.4.9 < 2026.4.10 - Denial of Service via Oversized WebSocket Frames in Voice-call Realtime Path
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-770 |
| Vendor | openclaw |
| Product | openclaw |
| Published | May 5, 2026 |
| Last Updated | May 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
OpenClaw / OpenClaw
2026.4.9 < 2026.4.10
References
github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-vw3h-q6xq-jjm5 github.com: https://github.com/openclaw/openclaw/commit/afadb7dae6738819ad9c7d2597ace0516957d20e vulncheck.com: https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-oversized-websocket-frames-in-voice-call-realtime-path
Credits
🔍 G0odUser