| Component | OpenClaw |
| Severity | medium (CVSS 6.6) |
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L |
| Published (NVD) | 2026-06-11 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.4.24 |
| Fixed in | 2026.4.24 |
| Weakness | CWE-862 |
| CISA KEV | not listed |
NVD description
OpenClaw before 2026.4.24 contains an authorization bypass vulnerability in the MCP loopback feature that allows non-owner callers to skip owner-only tool policies and before-tool-call hooks. Attackers can invoke owner-only behavior through the affected loopback path to execute restricted tools when the feature is enabled and reachable.
What to do
- Upgrade OpenClaw to
2026.4.24or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-53818
- https://github.com/openclaw/openclaw/security/advisories/GHSA-rj6p-xmxr-qj4h
- https://www.vulncheck.com/advisories/openclaw-owner-only-tool-policy-bypass-via-mcp-loopback
Read more
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