BREW-OPENCLAW-CLI-CVE-20… (GHSA-4RQQ-W8V4-7P47)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:21 – Updated: 2026-09-25 08:57 – Source website
VLAI
Summary
OpenClaw has incomplete IPv4 special-use SSRF blocking in web fetch guard
Details

Summary

isPrivateIpv4() in bundled SSRF guard code missed several IPv4 special-use/non-global ranges, so web_fetch could allow targets that should be blocked by SSRF policy.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Latest published affected version: 2026.2.21-2 (published 2026-02-21)
  • Structured vulnerable range: <= 2026.2.21-2
  • Planned patched version (pre-set): >= 2026.2.22

Impact

Low severity. Exploitation requires network reachability to the relevant special-use ranges and a request path that reaches web_fetch URL fetching.

Technical Details

Affected releases used narrow IPv4 private-range checks that omitted multiple RFC special-use/non-global ranges. This allowed requests such as http://198.18.0.1/... through SSRF validation in affected releases. Follow-up hardening consolidates local-host/tailnet range checks so gateway/browser/tailnet paths share one canonical IP classification flow.

Fix Commit(s)

  • 71bd15bb4294d3d1b54386064d69cd0f5f731bd8
  • 44dfbd23df453e51b71ef79a148c28c53e89168c
  • 333fbb86347998526dd514290adfd5f727caa6d9
  • f14ebd743cfc73f667fae80af70043d0ab1f88bd

OpenClaw thanks @princeeismond-dot for reporting.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "2026.2.22"
      },
      "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": "### Summary\n`isPrivateIpv4()` in bundled SSRF guard code missed several IPv4 special-use/non-global ranges, so `web_fetch` could allow targets that should be blocked by SSRF policy.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published affected version: `2026.2.21-2` (published 2026-02-21)\n- Structured vulnerable range: `\u003c= 2026.2.21-2`\n- Planned patched version (pre-set): `\u003e= 2026.2.22`\n\n### Impact\nLow severity. Exploitation requires network reachability to the relevant special-use ranges and a request path that reaches `web_fetch` URL fetching.\n\n### Technical Details\nAffected releases used narrow IPv4 private-range checks that omitted multiple RFC special-use/non-global ranges. This allowed requests such as `http://198.18.0.1/...` through SSRF validation in affected releases. Follow-up hardening consolidates local-host/tailnet range checks so gateway/browser/tailnet paths share one canonical IP classification flow.\n\n### Fix Commit(s)\n- `71bd15bb4294d3d1b54386064d69cd0f5f731bd8`\n- `44dfbd23df453e51b71ef79a148c28c53e89168c`\n- `333fbb86347998526dd514290adfd5f727caa6d9`\n- `f14ebd743cfc73f667fae80af70043d0ab1f88bd`\n\nOpenClaw thanks @princeeismond-dot for reporting.",
  "id": "BREW-openclaw-cli-CVE-2026-32019",
  "modified": "2026-09-25T08:57:09Z",
  "published": "2026-08-13T17:21:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-4rqq-w8v4-7p47"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32019"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/333fbb86347998526dd514290adfd5f727caa6d9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/44dfbd23df453e51b71ef79a148c28c53e89168c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/71bd15bb4294d3d1b54386064d69cd0f5f731bd8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/f14ebd743cfc73f667fae80af70043d0ab1f88bd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-incomplete-ipv4-special-use-range-blocking-in-ssrf-guard"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenClaw has incomplete IPv4 special-use SSRF blocking in web fetch guard",
  "upstream": [
    "GHSA-4rqq-w8v4-7p47",
    "CVE-2026-32019"
  ]
}



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