Vulnerability · Published Apr 23, 2026 · Assigned by VulnCheck

CVE-2026-41344OpenClaw < 2026.3.28 - Privilege Escalation via chat.send /verbose Parameter

Medium 5.4

In plain English

A medium-severity incorrect authorization in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 88.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.3.28	GHSA-5h2w-qmfp-ggp6

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	0 – before 2026.3.28

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

GitHub Security Advisory (GHSA-5h2w-qmfp-ggp6) vendor-advisory
VulnCheck Advisory: OpenClaw < 2026.3.28 - Privilege Escalation via chat.send /verbose Parameter third-party-advisory