GHSA-H3RM-6X7G-882F

Vulnerability from github – Published: 2026-03-03 21:19 – Updated: 2026-03-19 21:22
VLAI?
Summary
OpenClaw's Node system.run approval hardening wrapper semantic drift can execute unintended local scripts
Details

Summary

In openclaw@2026.3.1, node system.run approval-path hardening rewrote wrapper command argv in a way that changed execution semantics. A command shown/approved as a shell payload (for example echo SAFE) could execute a different local script when wrapper argv were rewritten.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected: 2026.3.1 (latest published npm version as of March 2, 2026)
  • Fixed release: 2026.3.2 (released)

Technical Details

Root cause was in node-host approval hardening for system.run: - src/node-host/invoke-system-run-plan.ts rewrote argv[0] to the resolved executable. - Wrapper resolution unwrapped dispatch wrappers, so input like ['env','sh','-c','echo SAFE'] resolved executable sh. - The approved plan could become ['/bin/sh','sh','-c','echo SAFE'] while approval text remained echo SAFE.

That rewrite changed runtime behavior: /bin/sh interprets the extra sh positional argument as a script path, enabling execution of a local ./sh file from approved cwd instead of the approved payload text.

Impact

Approval-integrity break in host=node execution flow: operator-visible command text and executed behavior could diverge.

Exploit preconditions: - attacker can influence wrapper argv and place a local file in approved working directory, - operator grants approval for the displayed command.

Fix Commit(s)

  • dded569626b0d8e7bdab10b5e7528b6caf73a0f1

Fixed Version

  • Patched in openclaw@2026.3.2.
Severity ?
6.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2026.3.1"
            },
            {
              "fixed": "2026.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2026.3.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-29608"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-88"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-03T21:19:08Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\nIn `openclaw@2026.3.1`, node `system.run` approval-path hardening rewrote wrapper command argv in a way that changed execution semantics. A command shown/approved as a shell payload (for example `echo SAFE`) could execute a different local script when wrapper argv were rewritten.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected: `2026.3.1` (latest published npm version as of March 2, 2026)\n- Fixed release: `2026.3.2` (released)\n\n### Technical Details\nRoot cause was in node-host approval hardening for `system.run`:\n- `src/node-host/invoke-system-run-plan.ts` rewrote `argv[0]` to the resolved executable.\n- Wrapper resolution unwrapped dispatch wrappers, so input like `[\u0027env\u0027,\u0027sh\u0027,\u0027-c\u0027,\u0027echo SAFE\u0027]` resolved executable `sh`.\n- The approved plan could become `[\u0027/bin/sh\u0027,\u0027sh\u0027,\u0027-c\u0027,\u0027echo SAFE\u0027]` while approval text remained `echo SAFE`.\n\nThat rewrite changed runtime behavior: `/bin/sh` interprets the extra `sh` positional argument as a script path, enabling execution of a local `./sh` file from approved `cwd` instead of the approved payload text.\n\n### Impact\nApproval-integrity break in `host=node` execution flow: operator-visible command text and executed behavior could diverge.\n\nExploit preconditions:\n- attacker can influence wrapper argv and place a local file in approved working directory,\n- operator grants approval for the displayed command.\n\n### Fix Commit(s)\n- `dded569626b0d8e7bdab10b5e7528b6caf73a0f1`\n\n### Fixed Version\n- Patched in `openclaw@2026.3.2`.",
  "id": "GHSA-h3rm-6x7g-882f",
  "modified": "2026-03-19T21:22:05Z",
  "published": "2026-03-03T21:19:08Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-h3rm-6x7g-882f"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29608"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/dded569626b0d8e7bdab10b5e7528b6caf73a0f1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-approval-integrity-bypass-via-system-run-argv-rewriting"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenClaw\u0027s Node system.run approval hardening wrapper semantic drift can execute unintended local scripts"
}


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