OpenClaw's ACP child sessions inherit subagent security envelope constraints
Summary
ACP child sessions inherit subagent security envelope constraints.
Affected Packages / Versions
- Package: openclaw (npm)
- Affected versions: <= 2026.4.21
- Fixed version: 2026.4.22
Impact
A restricted subagent spawning an ACP child session could fail to carry forward subagent-only constraints such as depth, child-count limits, control scope, or target-agent restrictions.
Fix
ACP spawn now resolves and persists child subagent envelope fields, enforces maximum depth and active-child caps, and applies the inherited control scope to child ACP sessions.
Fix Commit(s)
- 31160dc069b7cc5d833b39c53736a41ad3befda2
Verification
- The fix commit is contained in the public v2026.4.22 tag.
- openclaw@2026.4.22 is published on npm and the compiled package contains the fix.
- Focused regression coverage for this path passed before publication.
OpenClaw thanks @zsxsoft, @qclawer, and @KeenSecurityLab for reporting.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | < 2026.4.22 | 2026.4.22 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-q3jj-46pq-826r
- https://nvd.nist.gov/vuln/detail/CVE-2026-44997
- https://github.com/openclaw/openclaw/commit/31160dc069b7cc5d833b39c53736a41ad3befda2
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-security-envelope-constraint-bypass-in-acp-child-sessions
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-277- Platform
- npm
- Package
openclaw- Disclosed
- 04.05.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-q3jj-46pq-826r - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 588
- First → latest
- 02.2026 07.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 299
- Low 54
Disclosures per year
- 2026: 588
-
OpenClaw's ACP child sessions inherit subagent security envelope constraints this entry
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