CVE-2026-41400

MEDIUM

OpenClaw < 2026.3.31 - Resource Consumption via Oversized WebSocket Frames in voice-call

Title source: cna
STIX 2.1

Description

OpenClaw before 2026.3.31 contains an incomplete fix for CVE-2026-32062 where the voice-call component parses large WebSocket frames before start validation. Remote attackers can send oversized pre-start WebSocket frames to cause resource consumption and denial of service.

References (3)

Core 3
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-2w79-r9g8-wmcr)
https://github.com/openclaw/openclaw/security/advisories/GHSA-2w79-r9g8-wmcr
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw < 2026.3.31 - Resource Consumption via Oversized WebSocket Frames in voice-call
https://www.vulncheck.com/advisories/openclaw-resource-consumption-via-oversized-websocket-frames-in-voice-call

Scores

CVSS v3 5.3
EPSS 0.0053
EPSS Percentile 40.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (4)
npm/openclaw 0 - 2026.3.31npm
OpenClaw/OpenClaw < 2026.3.31
openclaw/openclaw < 2026.3.31
OpenClaw/OpenClaw 2026.3.31
Published Apr 28, 2026
Tracked Since Apr 29, 2026