| Component | OpenClaw |
| Severity | low (CVSS 3.3) |
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| Published (NVD) | 2026-09-26 |
| Last modified | 2026-09-30 |
| Affected versions | < 2026.8.1 read from the advisory text: NVD has not published CPE data yet |
| Fixed in | 2026.8.1 |
| Weakness | CWE-862 |
| CISA KEV | not listed |
NVD description
OpenClaw versions before 2026.8.1 contain a sandbox policy bypass vulnerability in the MCP loopback component that allows sandboxed coding-agent sessions to invoke tools explicitly denied by sandbox.tools.deny policy. Attackers can list and invoke denied tools to access data or perform actions the operator intended to exclude from the sandbox.
What to do
- Upgrade OpenClaw to
2026.8.1or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-100573
- https://github.com/openclaw/openclaw/security/advisories/GHSA-5m4g-88rg-69pj
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-sandbox-policy-bypass-via-mcp-loopback
Read more
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