CVE-2026-35629: OpenClaw SSRF Vulnerability

HIGH
Advisory Identifier: GHSA-rhfg-j8jq-7v2h
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CWE-918
Published
Advisory Summary

CVE-2026-35629 is a HIGH ssrf vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting OpenClaw libraries in the npm ecosystem. The issue involves ssrf via unguarded configured base urls in multiple channel extensions (incomplete fix for cve-2026-28476). Remediation is available by upgrading affected packages to version 2026.3.28.

CVE-2026-35629 at a Glance

CVE Identifier CVE-2026-35629
GHSA Identifier GHSA-rhfg-j8jq-7v2h
Severity HIGH
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 CVE-2026-35629

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: 2026.3.28 
npm install openclaw@2026.3.28
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 CVE-2026-35629, 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 2026.3.28), 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 SSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476) ## Affected Packages / Versions - Package: `openclaw` - Affected versions: `<= 2026.3.24` - First patched version: `2026.3.25` - Latest published npm version at verification time: `2026.3.24` ## Details Several channel extensions still used raw `fetch()` against configured base URLs without the SSRF guard that was added for CVE-2026-28476. Commit `f92c92515bd439a71bd03eb1bc969c1964f17acf` routes those outbound requests through `fetchWithSsrFGuard` so configured endpoints cannot be rebound to blocked internal destinations. Verified vulnerable on tag `v2026.3.24` and fixed on `main` by commit `f92c92515bd439a71bd03eb1bc969c1964f17acf`. ## Fix Commit(s) - `f92c92515bd439a71bd03eb1bc969c1964f17acf`

CVE-2026-35629 Affected OpenClaw Versions

1 component(s)
Fixed Versions:
2026.3.28
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.3.28
2026.3.28

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-rhfg-j8jq-7v2h
NVD — CVE-2026-35629 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35629
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/f92c92515bd439a71bd03eb1bc969c1964f17acf
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-pg2v-8xwh-qhcc
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-server-side-request-forgery-via-unguarded-configured-base-urls-in-channel-extensions

Frequently Asked Questions

What is CVE-2026-35629?
CVE-2026-35629 is a security vulnerability in OpenClaw involving SSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476) under CWE-918: Server-Side Request Forgery (SSRF).
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.3.28 across affected packages: openclaw.
What version fixes CVE-2026-35629?
Upgrading to 2026.3.28 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.3.28. Upgrade your dependency to 2026.3.28 or later.
What CWE is associated with CVE-2026-35629?
CVE-2026-35629 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 CVE-2026-35629?
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-rhfg-j8jq-7v2h",
  "modified" : "2026-04-10T20:19:25Z",
  "published" : "2026-03-29T15:48:42Z",
  "aliases" : [ "CVE-2026-35629" ],
  "summary" : "OpenClaw: SSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476)",
  "details" : "## Summary\n\nSSRF via Unguarded Configured Base URLs in Multiple Channel Extensions (Incomplete Fix for CVE-2026-28476)\n\n## Affected Packages / Versions\n\n- Package: `openclaw`\n- Affected versions: `<= 2026.3.24`\n- First patched version: `2026.3.25`\n- Latest published npm version at verification time: `2026.3.24`\n\n## Details\n\nSeveral channel extensions still used raw `fetch()` against configured base URLs without the SSRF guard that was added for CVE-2026-28476. Commit `f92c92515bd439a71bd03eb1bc969c1964f17acf` routes those outbound requests through `fetchWithSsrFGuard` so configured endpoints cannot be rebound to blocked internal destinations.\n\nVerified vulnerable on tag `v2026.3.24` and fixed on `main` by commit `f92c92515bd439a71bd03eb1bc969c1964f17acf`.\n\n## Fix Commit(s)\n\n- `f92c92515bd439a71bd03eb1bc969c1964f17acf`",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.3.28"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-rhfg-j8jq-7v2h"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-35629"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/f92c92515bd439a71bd03eb1bc969c1964f17acf"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-pg2v-8xwh-qhcc"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-server-side-request-forgery-via-unguarded-configured-base-urls-in-channel-extensions"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-29T15:48:42Z",
    "nvd_published_at" : null
  }
}