CVE-2026-41344

OpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.

Score

CVSS 3.1 8.8 High

Status

Analyzed - disclosure@vulncheck.com

Published

2026-04-23

Last modified

2026-04-24

Weaknesses

CWE-863

Affected products

• Openclaw (Openclaw)

References

• https://github.com/openclaw/openclaw/security/advisories/GHSA-5h2w-qmfp-ggp6
• https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-chat-send-verbose-parameter