GHSA-4685-C5CP-VP95

Vulnerability from github – Published: 2026-02-19 22:06 – Updated: 2026-03-19 21:25
VLAI
Summary
OpenClaw safeBins stdin-only bypass via sort output and recursive grep flags
Details

Summary

tools.exec.safeBins could be bypassed for filesystem access when sort output flags (-o / --output) or recursive grep flags were allowed through safe-bin execution paths.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.2.17
  • Patched versions: >= 2026.2.19
  • Latest published version at triage time: 2026.2.17

Impact

In deployments that enabled tools.exec.safeBins, an attacker with access to command execution flows could turn intended stdin-only safe-bin usage into file writes (sort -o) or recursive file reads (grep -R).

Fix Commit(s)

  • 2c05cbb43e48ebad03626d3125746fb1b9a8520f

Found using MCPwner

Thanks @nedlir for reporting.

Severity
3.6 (Low)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2026.2.17"
      },
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.2.19"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-31996"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-184",
      "CWE-78"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-19T22:06:00Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "## Summary\n`tools.exec.safeBins` could be bypassed for filesystem access when `sort` output flags (`-o` / `--output`) or recursive `grep` flags were allowed through safe-bin execution paths.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected versions: `\u003c= 2026.2.17`\n- Patched versions: `\u003e= 2026.2.19`\n- Latest published version at triage time: `2026.2.17`\n\n## Impact\nIn deployments that enabled `tools.exec.safeBins`, an attacker with access to command execution flows could turn intended stdin-only safe-bin usage into file writes (`sort -o`) or recursive file reads (`grep -R`).\n\n## Fix Commit(s)\n- `2c05cbb43e48ebad03626d3125746fb1b9a8520f`\n\nFound using [MCPwner](https://github.com/Pigyon/MCPwner)\n\nThanks @nedlir for reporting.",
  "id": "GHSA-4685-c5cp-vp95",
  "modified": "2026-03-19T21:25:18Z",
  "published": "2026-02-19T22:06:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-4685-c5cp-vp95"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31996"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/2c05cbb43e48ebad03626d3125746fb1b9a8520f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-safebins-stdin-only-bypass-via-sort-output-and-recursive-grep-flags"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenClaw safeBins stdin-only bypass via sort output and recursive grep flags"
}


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