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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.

PUBLISHED Reserved 2026-04-20 | Published 2026-04-28 | Updated 2026-04-28 | Assigner VulnCheck




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

Default status
unaffected

Any version before 2026.3.31
affected

2026.3.31 (semver)
unaffected

Credits

风间映川 (@Kazamayc) reporter

References

github.com/...enclaw/security/advisories/GHSA-2w79-r9g8-wmcr (GitHub Security Advisory (GHSA-2w79-r9g8-wmcr)) vendor-advisory

github.com/...ommit/9abcfdadf591bf266d85fbdfe14ae833e557a110 (Patch Commit) patch

www.vulncheck.com/...versized-websocket-frames-in-voice-call (VulnCheck Advisory: OpenClaw < 2026.3.31 - Resource Consumption via Oversized WebSocket Frames in voice-call) third-party-advisory

cve.org (CVE-2026-41400)

nvd.nist.gov (CVE-2026-41400)

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