GHSA-ch86-pxr9-j9h9: Duplicate Advisory OpenClaw: Gemini OAuth Exposed The Vulnerability

MODERATE
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CVSS 5.3
CWE-330
Published
Advisory Summary

GHSA-ch86-pxr9-j9h9 is a MODERATE (CVSS 5.3) openclaw: gemini oauth exposed the vulnerability (CWE-330: Use of Insufficiently Random Values) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves openclaw: gemini oauth exposed the pkce verifier through the oauth state parameter. Remediation is available by upgrading affected packages to version 2026.4.2.

GHSA-ch86-pxr9-j9h9 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-ch86-pxr9-j9h9
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-330: Use of Insufficiently Random Values
Affected Product Duplicate Advisory
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix GHSA-ch86-pxr9-j9h9

To remediate this vulnerability, upgrade all affected Duplicate Advisory 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: 2026.4.2 
npm install openclaw@2026.4.2
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-ch86-pxr9-j9h9, inspect your project dependencies using npm:

npm ls openclaw

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.4.2), 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-330: Use of Insufficiently Random Values, where the product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. In Duplicate Advisory, 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

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9jpj-g8vv-j5mf. This link is maintained to preserve external references. ### Original Description OpenClaw before 2026.4.2 reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it through the redirect URL. Attackers who capture the redirect URL can obtain both the authorization code and PKCE verifier, defeating PKCE protection and enabling token redemption.

GHSA-ch86-pxr9-j9h9 Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
2026.4.2
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.4.2
2026.4.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-9jpj-g8vv-j5mf
NVD — GHSA-ch86-pxr9-j9h9 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34511
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/a26f4d0f3ef0757db6c6c40277cc06a5de76c52f
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-pkce-verifier-exposure-via-oauth-state-parameter

Frequently Asked Questions

What is GHSA-ch86-pxr9-j9h9?
GHSA-ch86-pxr9-j9h9 is a security vulnerability in Duplicate Advisory involving OpenClaw: Gemini OAuth exposed the PKCE verifier through the OAuth state parameter under CWE-330: Use of Insufficiently Random Values.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 2026.4.2 across affected packages: openclaw.
What version fixes GHSA-ch86-pxr9-j9h9?
Upgrading to 2026.4.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.4.2. Upgrade your dependency to 2026.4.2 or later.
What is the CVSS score of GHSA-ch86-pxr9-j9h9?
GHSA-ch86-pxr9-j9h9 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.
What CWE is associated with GHSA-ch86-pxr9-j9h9?
GHSA-ch86-pxr9-j9h9 is classified under CWE-330: Use of Insufficiently Random Values (The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.).
How can I check npm dependencies for GHSA-ch86-pxr9-j9h9?
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-ch86-pxr9-j9h9",
  "modified" : "2026-04-07T14:24:10Z",
  "published" : "2026-04-03T21:31:43Z",
  "withdrawn" : "2026-04-07T14:24:10Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: OpenClaw: Gemini OAuth exposed the PKCE verifier through the OAuth state parameter",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-9jpj-g8vv-j5mf. This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw before 2026.4.2 reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it through the redirect URL. Attackers who capture the redirect URL can obtain both the authorization code and PKCE verifier, defeating PKCE protection and enabling token redemption.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.4.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-9jpj-g8vv-j5mf"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-34511"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/a26f4d0f3ef0757db6c6c40277cc06a5de76c52f"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-pkce-verifier-exposure-via-oauth-state-parameter"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-330" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-07T14:24:10Z",
    "nvd_published_at" : "2026-04-03T21:17:11Z"
  }
}