PT-2026-35784 · Openclaw · Openclaw

风间映川 · Published 2026-04-03 · Updated 2026-04-30 · CVE-2026-41400

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.3.31

Description 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 (DoS), which is a state where a system becomes unavailable to its intended users.

Recommendations Update to version 2026.3.31 or later.

Fix

Allocation of Resources Without Limits

Resource Exhaustion

Weakness Enumeration

CWE-770

CWE-400

Related Identifiers

CVE-2026-41400

GHSA-2W79-R9G8-WMCR

Affected Products

Openclaw

References · 9

• https://github.com/openclaw/openclaw/security/advisories/GHSA-2w79-r9g8-wmcr · Vendor Advisory
• https://github.com/openclaw/openclaw/commit/9abcfdadf591bf266d85fbdfe14ae833e557a110 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-41400 · Security Note
• https://osv.dev/vulnerability/GHSA-2w79-r9g8-wmcr · Vendor Advisory
• https://github.com/openclaw/openclaw · Note
• https://github.com/openclaw/openclaw/releases/tag/v2026.3.31 · Note
• https://twitter.com/CVEnew/status/2049227519824429374 · Twitter Post
• https://vulncheck.com/advisories/openclaw-resource-consumption-via-oversized-websocket-frames-in-voice-call · Note
• https://t.me/cveNotify/161602 · Telegram Post