| Component | OpenClaw |
| Severity | medium (CVSS 4.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| Published (NVD) | 2026-05-11 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.4.22 |
| Fixed in | 2026.4.22 |
| Weakness | CWE-266 |
| CISA KEV | not listed |
NVD description
OpenClaw before 2026.4.22 contains a security envelope constraint bypass vulnerability allowing restricted subagents to spawn ACP child sessions that fail to inherit depth, child-count limits, control scope, or target-agent restrictions. Attackers can exploit this by spawning child sessions that bypass subagent-only constraints, potentially escalating privileges or accessing restricted resources.
What to do
- Upgrade OpenClaw to
2026.4.22or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-44997
- https://github.com/openclaw/openclaw/commit/31160dc069b7cc5d833b39c53736a41ad3befda2
- https://github.com/openclaw/openclaw/security/advisories/GHSA-q3jj-46pq-826r
- https://www.vulncheck.com/advisories/openclaw-security-envelope-constraint-bypass-in-acp-child-sessions
Read more
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