GHSA-h97f-6pqj-q452: Openclaw OpenClaw Has A IPv6 Multicast Vulnerability

MODERATE
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CWE-918
Published
Advisory Summary

GHSA-h97f-6pqj-q452 is a MODERATE openclaw has a ipv6 multicast vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Openclaw libraries in the npm ecosystem. The issue involves openclaw has a ipv6 multicast ssrf classifier bypass. Remediation is available by upgrading affected packages to version 2026.2.25.

GHSA-h97f-6pqj-q452 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-h97f-6pqj-q452
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Openclaw
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-h97f-6pqj-q452

To remediate this vulnerability, upgrade all affected Openclaw dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

openclaw fixed: 2026.2.25 
npm install openclaw@2026.2.25
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls openclaw

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-h97f-6pqj-q452, inspect your project dependencies using npm:

npm ls openclaw

Analyze the terminal output to locate any version of Openclaw in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.2.25), your application is affected.

Note: The npm ls openclaw command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Openclaw, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary OpenClaw's SSRF IP classifier did not treat IPv6 multicast literals (`ff00::/8`) as blocked/private-internal. This allowed literal multicast hosts to pass SSRF preflight checks. ### Impact A bypass in address classification existed for IPv6 multicast literals. OpenClaw's network fetch/navigation paths are constrained to HTTP/HTTPS and this was triaged as low-severity defense-in-depth hardening. ### Affected Packages / Versions - Package: `openclaw` (npm) - Affected versions: `<= 2026.2.24` - Patched versions: `>= 2026.2.25` ### Technical Details The IPv6 private/internal range set omitted `multicast`, so addresses like `ff02::1` and `ff05::1:3` were not classified as blocked by the shared SSRF classifier. ### Fix Commit(s) - `baf656bc6fd7f83b6033e6dbc2548ec75028641f` ### Release Process Note `patched_versions` is pre-set to the planned next npm release (`2026.2.25`). Once that release is published on npm, the advisory is published. OpenClaw thanks @zpbrent for reporting.

GHSA-h97f-6pqj-q452 Affected Openclaw Versions

1 component(s)
Fixed Versions:
2026.2.25
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.2.25
2026.2.25

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-h97f-6pqj-q452
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/baf656bc6fd7f83b6033e6dbc2548ec75028641f
Openclaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw

Frequently Asked Questions

What is GHSA-h97f-6pqj-q452?
GHSA-h97f-6pqj-q452 is a security vulnerability in Openclaw involving OpenClaw has a IPv6 multicast SSRF classifier bypass under CWE-918: Server-Side Request Forgery (SSRF).
Which Openclaw versions are affected?
Affected versions include releases prior to 2026.2.25 across affected packages: openclaw.
What version fixes GHSA-h97f-6pqj-q452?
Upgrading to 2026.2.25 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.2.25. Upgrade your dependency to 2026.2.25 or later.
What CWE is associated with GHSA-h97f-6pqj-q452?
GHSA-h97f-6pqj-q452 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check npm dependencies for GHSA-h97f-6pqj-q452?
Run the dependency tree command: 'npm ls openclaw'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-h97f-6pqj-q452",
  "modified" : "2026-03-03T21:48:55Z",
  "published" : "2026-03-03T21:48:55Z",
  "aliases" : [ ],
  "summary" : "OpenClaw has a IPv6 multicast SSRF classifier bypass",
  "details" : "### Summary\nOpenClaw's SSRF IP classifier did not treat IPv6 multicast literals (`ff00::/8`) as blocked/private-internal. This allowed literal multicast hosts to pass SSRF preflight checks.\n\n### Impact\nA bypass in address classification existed for IPv6 multicast literals. OpenClaw's network fetch/navigation paths are constrained to HTTP/HTTPS and this was triaged as low-severity defense-in-depth hardening.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected versions: `<= 2026.2.24`\n- Patched versions: `>= 2026.2.25` \n\n### Technical Details\nThe IPv6 private/internal range set omitted `multicast`, so addresses like `ff02::1` and `ff05::1:3` were not classified as blocked by the shared SSRF classifier.\n\n### Fix Commit(s)\n- `baf656bc6fd7f83b6033e6dbc2548ec75028641f`\n\n### Release Process Note\n`patched_versions` is pre-set to the planned next npm release (`2026.2.25`). Once that release is published on npm, the advisory is published.\n\nOpenClaw thanks @zpbrent for reporting.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.2.25"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2026.2.24"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-h97f-6pqj-q452"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/baf656bc6fd7f83b6033e6dbc2548ec75028641f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-03T21:48:55Z",
    "nvd_published_at" : null
  }
}