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Medium, CVSS 6.1amended

OpenClaw's web tools strict URL guard could lose DNS pinning when env proxy is configured

CVE-2026-22181GHSA-8mvx-p2r9-r375

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (openclaw 2026.3.2), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm openclaw

    Affected
    <= 2026.3.1
    Fixed in
    2026.3.2

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
6.1 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N · score source
EPSS
  • CVE-2026-22181: 0.24% estimated exploitation activity in the next 30 days; percentile 15.58 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Summary openclaw web tools strict URL fetch paths could lose DNS pinning when environment proxy variables are configured (HTTPPROXY/HTTPSPROXY/ALLPROXY, including lowercase variants). In affected builds, strict URL checks (for example webfetch and citation redirect resolution) validated one destination during SSRF guard checks, but runtime connection routing could proceed through an env-proxy dispatcher. Affected Packages / Versions - Package: openclaw (npm) - Vulnerable version range: <= 2026.3.1 - Latest published npm version at triage time (2026-03-02): 2026.3.1 - Patched versions: = 2026.3.2 (released) Technical Details The SSRF guard performed hostname resolution and policy checks, then selected a request dispatcher. When env proxy settings were present, strict web-tool flows could use EnvHttpProxyAgent instead of the DNS-pinned dispatcher. This created a destination-binding gap between check-time resolution and connect-time routing. The fix keeps DNS pinning on strict/untrusted…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-8mvx-p2r9-r375

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-8mvx-p2r9-r375

Agent brief

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# Patch Next advisory brief: CVE-2026-22181

Advisory: OpenClaw's web tools strict URL guard could lose DNS pinning when env proxy is configured
IDs: CVE-2026-22181, GHSA-8mvx-p2r9-r375
Record: https://patchnext.com/advisories/cve-2026-22181 (revision 3, source checked 26 Oct 2026, 12:46 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: openclaw 2026.3.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm openclaw: affected <= 2026.3.1; fixed in 2026.3.2

## Suggested inspection (read-only)
- `npm ls openclaw --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on openclaw.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-8mvx-p2r9-r375 (OSV record GHSA-8mvx-p2r9-r375 lists affected ranges: npm openclaw >=0 <2026.3.2 (fixed))
- Verified: https://github.com/advisories/GHSA-8mvx-p2r9-r375 (GitHub-reviewed advisory GHSA-8mvx-p2r9-r375 lists affected ranges: npm openclaw >=0 <=2026.3.1)

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