GHSA-474h-prjg-mmw3 OpenClaw: Sandboxed sessions_spawn(runtime="acp") bypassed sandbox inheritance and allowed host ACP initialization
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Published
Check this codebase for GHSA-474h-prjg-mmw3 and fix it if it is affected.
What it is: GHSA-474h-prjg-mmw3 is a vulnerability in openclaw, published on 3 Mar 2026.
Exploitation: There is no known exploitation of GHSA-474h-prjg-mmw3 in the wild and no public exploit code.
Affected packages and fixed versions:
- openclaw (npm): affected all versions; fixed in 2026.3.2
- openclaw (npm): affected all versions; fixed in 2026.3.2
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/GHSA-474h-prjg-mmw3/ (Markdown: https://insights.sbomify.com/GHSA-474h-prjg-mmw3/index.md)
OpenClaw library allows sandboxed sessions to bypass isolation and initialize host-side ACP runtime, enabling privilege escalation or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-474h-prjg-mmw3?
GHSA-474h-prjg-mmw3 is a vulnerability in openclaw, published on 3 Mar 2026.
Official description
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
Which versions are affected by GHSA-474h-prjg-mmw3?
2 open source packages ship an affected version, including openclaw.
| Package | Affected | Fixed in |
|---|---|---|
openclaw npm | All versions | 2026.3.2 |
openclaw npm | All versions | 2026.3.2 |
How do I fix GHSA-474h-prjg-mmw3?
Upgrade openclaw to 2026.3.2 or later.
Is GHSA-474h-prjg-mmw3 being exploited?
There is no known exploitation of GHSA-474h-prjg-mmw3 in the wild and no public exploit code.