OpenClaw: Sandboxed sessions_spawn(runtime="acp") bypassed sandbox inheritance and allowed host ACP initialization
Summary
Sandboxed sessions_spawn(runtime="acp") could bypass sandbox inheritance and initialize host-side ACP runtime. The fix now fail-closes ACP spawn from sandboxed requester sessions and rejects sandbox="require" for runtime="acp".
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published npm version at triage time:
2026.3.1(March 2, 2026) - Vulnerable range:
<=2026.3.1 - Patched release:
2026.3.2(released)
Technical Details
- Root cause:
runtime="subagent"enforced sandbox inheritance, whileruntime="acp"did not enforce equivalent sandbox/runtime checks. - Security impact: sandbox-boundary bypass into host-side ACP initialization.
- Fixed behavior:
- deny ACP spawn when requester runtime is sandboxed
- deny
sessions_spawnwithruntime="acp", sandbox="require" - align sandboxed prompt guidance to avoid advertising blocked ACP paths
Fix Commit(s)
ac11f0af731d41743ba02d8595f4d0fe747336e3c703aa0fe92df9fb71cf254fc46991e05fba2114
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | < 2026.3.2 | 2026.3.2 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-269- Platform
- npm
- Package
openclaw- Disclosed
- 03.03.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-474h-prjg-mmw3 - 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: Sandboxed sessions_spawn(runtime="acp") bypassed sandbox inheritance and allowed host ACP initialization this entry
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