| Component | OpenClaw |
| Severity | medium (CVSS 5.4) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| Published (NVD) | 2026-04-23 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.3.28 |
| Fixed in | 2026.3.28 |
| Weakness | CWE-863 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade OpenClaw to
2026.3.28or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-41344
- https://github.com/openclaw/openclaw/security/advisories/GHSA-5h2w-qmfp-ggp6
- https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-chat-send-verbose-parameter
Read more
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