GHSA-474h-prjg-mmw3
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
What each source reports
GitHub Advisories Score used
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
- Record
GHSA-474h-prjg-mmw3- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-269
- Updated
- 2026-11-02
OSV
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
- Record
GHSA-474h-prjg-mmw3- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-269
- Updated
- 2026-11-02
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-474h-prjg-mmw3 is a high vulnerability (CVSS 8.0) in openclaw, published March 3, 2026. No source lists public exploit code. Fixed in openclaw 2026.3.2.