BREW-OPENCLAW-CLI-GHSA-4… (GHSA-474H-PRJG-MMW3)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:21 – Updated: 2026-10-20 08:59 – Source website
VLAI
Summary
OpenClaw: Sandboxed sessions_spawn(runtime="acp") bypassed sandbox inheritance and allowed host ACP initialization
Details

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, while runtime="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_spawn with runtime="acp", sandbox="require"
  • align sandboxed prompt guidance to avoid advertising blocked ACP paths

Fix Commit(s)

  • ac11f0af731d41743ba02d8595f4d0fe747336e3
  • c703aa0fe92df9fb71cf254fc46991e05fba2114
Severity
8.0 (High)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "2026.3.2"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "openclaw-cli",
        "purl": "pkg:brew/openclaw-cli"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2026.1.29"
            },
            {
              "fixed": "2026.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "npm",
        "key": "pkg:npm/openclaw@2026.10.5",
        "name": "openclaw",
        "strategy": "registry",
        "subject_version": "2026.10.5"
      }
    ]
  },
  "details": "### Summary\nSandboxed `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\"`.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published npm version at triage time: `2026.3.1` (March 2, 2026)\n- Vulnerable range: `\u003c=2026.3.1`\n- Patched release: `2026.3.2` (released)\n\n### Technical Details\n- Root cause: `runtime=\"subagent\"` enforced sandbox inheritance, while `runtime=\"acp\"` did not enforce equivalent sandbox/runtime checks.\n- Security impact: sandbox-boundary bypass into host-side ACP initialization.\n- Fixed behavior:\n  - deny ACP spawn when requester runtime is sandboxed\n  - deny `sessions_spawn` with `runtime=\"acp\", sandbox=\"require\"`\n  - align sandboxed prompt guidance to avoid advertising blocked ACP paths\n\n### Fix Commit(s)\n- `ac11f0af731d41743ba02d8595f4d0fe747336e3`\n- `c703aa0fe92df9fb71cf254fc46991e05fba2114`",
  "id": "BREW-openclaw-cli-GHSA-474h-prjg-mmw3",
  "modified": "2026-10-20T08:59:26Z",
  "published": "2026-08-13T17:21:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-474h-prjg-mmw3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/ac11f0af731d41743ba02d8595f4d0fe747336e3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/c703aa0fe92df9fb71cf254fc46991e05fba2114"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenClaw: Sandboxed sessions_spawn(runtime=\"acp\") bypassed sandbox inheritance and allowed host ACP initialization",
  "upstream": [
    "GHSA-474h-prjg-mmw3"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.