GHSA-474H-PRJG-MMW3

Vulnerability from github – Published: 2026-03-03 21:31 – Updated: 2026-03-03 21:31
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
Show details on source website
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2026.3.1"
      },
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-03T21:31:57Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "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": "GHSA-474h-prjg-mmw3",
  "modified": "2026-03-03T21:31:57Z",
  "published": "2026-03-03T21:31:57Z",
  "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": "1.4.0",
  "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"
}



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