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HIGHCVE-2026-42437Published Modified CNA VulnCheck

CVE-2026-42437: OpenClaw 2026.4.9 < 2026.4.10 - Denial of Service via Oversized WebSocket Frames in Voice-call Realtime Path

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.

Metrics

CVSS v4.0
8.2
Severity
HIGH
Fixed in
2026.4.10
Affected Products
1

Fix available

2026.4.10
Patch commits
Affected packages
  • OpenClaw / OpenClaw
    < 2026.4.10 (from 2026.4.9)
    Fixed in 2026.4.10
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
References