BREW-OPENCLAW-CLI-CVE-20… (GHSA-45CG-2683-GFMQ)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:21 – Updated: 2026-09-25 08:57 – Source website
VLAI
Summary
OpenClaw browser navigation guard allowed non-network URL schemes, enabling authenticated browser-tool users to access file:// local files
Details

Impact

assertBrowserNavigationAllowed() validated only http:/https: network targets but implicitly allowed other schemes. An authenticated gateway user could navigate browser sessions to file:// URLs and read local files via browser snapshot/extraction flows.

Affected Component

  • src/browser/navigation-guard.ts

Technical Reproduction

  1. Authenticate to a gateway that has browser tooling enabled.
  2. Invoke browser navigation with a file:// URL (for example file:///etc/passwd).
  3. Read page content through browser snapshot/extract actions.

Demonstrated Impact

An attacker with valid gateway credentials and browser-tool access can exfiltrate local files readable by the OpenClaw process user (for example config/secrets in that user context).

Environment

  • OpenClaw browser tool enabled
  • Attacker has authenticated access capable of invoking browser actions

Remediation Advice

Reject unsupported navigation schemes and allow only explicitly safe non-network URLs. OpenClaw now blocks non-network schemes (such as file:, data:, and javascript:) while preserving about:blank.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.2.19-2
  • Patched in planned next release: 2026.2.21

Fix Commit(s)

  • 220bd95eff6838234e8b4b711f86d4565e16e401

Release Process Note

patched_versions is pre-set to the planned next release (2026.2.21) so once npm 2026.2.21 is published, the advisory can be published directly.

OpenClaw thanks @q1uf3ng for reporting.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "2026.2.21"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "openclaw-cli",
        "purl": "pkg:brew/openclaw-cli"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "npm",
        "key": "pkg:npm/openclaw@2026.9.6",
        "name": "openclaw",
        "strategy": "registry",
        "subject_version": "2026.9.6"
      }
    ]
  },
  "details": "## Impact\n\n`assertBrowserNavigationAllowed()` validated only `http:`/`https:` network targets but implicitly allowed other schemes. An authenticated gateway user could navigate browser sessions to `file://` URLs and read local files via browser snapshot/extraction flows.\n\n## Affected Component\n\n- `src/browser/navigation-guard.ts`\n\n## Technical Reproduction\n\n1. Authenticate to a gateway that has browser tooling enabled.\n2. Invoke browser navigation with a `file://` URL (for example `file:///etc/passwd`).\n3. Read page content through browser snapshot/extract actions.\n\n## Demonstrated Impact\n\nAn attacker with valid gateway credentials and browser-tool access can exfiltrate local files readable by the OpenClaw process user (for example config/secrets in that user context).\n\n## Environment\n\n- OpenClaw browser tool enabled\n- Attacker has authenticated access capable of invoking browser actions\n\n## Remediation Advice\n\nReject unsupported navigation schemes and allow only explicitly safe non-network URLs. OpenClaw now blocks non-network schemes (such as `file:`, `data:`, and `javascript:`) while preserving `about:blank`.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected versions: `\u003c= 2026.2.19-2`\n- Patched in planned next release: `2026.2.21`\n\n## Fix Commit(s)\n\n- `220bd95eff6838234e8b4b711f86d4565e16e401`\n\n## Release Process Note\n\n`patched_versions` is pre-set to the planned next release (`2026.2.21`) so once npm `2026.2.21` is published, the advisory can be published directly.\n\nOpenClaw thanks @q1uf3ng for reporting.",
  "id": "BREW-openclaw-cli-CVE-2026-32008",
  "modified": "2026-09-25T08:57:09Z",
  "published": "2026-08-13T17:21:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-45cg-2683-gfmq"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/220bd95eff6838234e8b4b711f86d4565e16e401"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenClaw browser navigation guard allowed non-network URL schemes, enabling authenticated browser-tool users to access file:// local files",
  "upstream": [
    "GHSA-45cg-2683-gfmq",
    "CVE-2026-32008"
  ]
}



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