GHSA-p3m6-jr2h-hhxj: Duplicate Advisory OpenClaw: MCP Stdio Server Env Vulnerability

MODERATE
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CVSS 7.3
CWE-829
Published
Advisory Summary

GHSA-p3m6-jr2h-hhxj is a MODERATE (CVSS 7.3) openclaw: mcp stdio server env vulnerability (CWE-829: Inclusion of Functionality from Untrusted Control Sphere) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves openclaw: mcp stdio server env could load dangerous startup variables from workspace config. Remediation is available by upgrading affected packages to version 2026.4.20.

GHSA-p3m6-jr2h-hhxj at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-p3m6-jr2h-hhxj
Severity MODERATE
CVSS v3.1 Base Score 7.3
CWE Classification CWE-829: Inclusion of Functionality from Untrusted Control Sphere
Affected Product Duplicate Advisory
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.3

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix GHSA-p3m6-jr2h-hhxj

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: 2026.4.20 
npm install openclaw@2026.4.20
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-p3m6-jr2h-hhxj, 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 2026.4.20), 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-829: Inclusion of Functionality from Untrusted Control Sphere, where the product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere. 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-mj59-h3q9-ghfh. This link is maintained to preserve external references. ### Original Description OpenClaw before 2026.4.20 contains an improper environment variable validation vulnerability in MCP stdio server configuration that allows attackers to execute arbitrary code. Malicious workspace configurations can pass dangerous startup variables like NODE_OPTIONS, LD_PRELOAD, or BASH_ENV to spawned MCP server processes, enabling code injection when operators start sessions using those servers.

GHSA-p3m6-jr2h-hhxj Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
2026.4.20
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.4.20
2026.4.20

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-mj59-h3q9-ghfh
NVD — GHSA-p3m6-jr2h-hhxj NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44995
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/62fa5071896e95edc7f67d1cebc70a2859e283af
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/85d86ebc4bf3d2226d39d132a484f4f7a299fa1b
Duplicate Advisory Source Repository REPOSITORY
https://github.com/openclaw/openclaw
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-mcp-stdio-environment-variables

Frequently Asked Questions

What is GHSA-p3m6-jr2h-hhxj?
GHSA-p3m6-jr2h-hhxj is a security vulnerability in Duplicate Advisory involving OpenClaw: MCP stdio server env could load dangerous startup variables from workspace config under CWE-829: Inclusion of Functionality from Untrusted Control Sphere.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 2026.4.20 across affected packages: openclaw.
What version fixes GHSA-p3m6-jr2h-hhxj?
Upgrading to 2026.4.20 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.4.20. Upgrade your dependency to 2026.4.20 or later.
What is the CVSS score of GHSA-p3m6-jr2h-hhxj?
GHSA-p3m6-jr2h-hhxj has a CVSS v3.1 base score of 7.3 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with GHSA-p3m6-jr2h-hhxj?
GHSA-p3m6-jr2h-hhxj is classified under CWE-829: Inclusion of Functionality from Untrusted Control Sphere (The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.).
How can I check npm dependencies for GHSA-p3m6-jr2h-hhxj?
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-p3m6-jr2h-hhxj",
  "modified" : "2026-05-18T15:30:14Z",
  "published" : "2026-05-11T18:31:46Z",
  "withdrawn" : "2026-05-18T15:30:14Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: OpenClaw: MCP stdio server env could load dangerous startup variables from workspace config",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-mj59-h3q9-ghfh. This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw before 2026.4.20 contains an improper environment variable validation vulnerability in MCP stdio server configuration that allows attackers to execute arbitrary code. Malicious workspace configurations can pass dangerous startup variables like NODE_OPTIONS, LD_PRELOAD, or BASH_ENV to spawned MCP server processes, enabling code injection when operators start sessions using those servers.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/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" : "2026.4.20"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-mj59-h3q9-ghfh"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-44995"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/62fa5071896e95edc7f67d1cebc70a2859e283af"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/85d86ebc4bf3d2226d39d132a484f4f7a299fa1b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-mcp-stdio-environment-variables"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-829" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-18T15:30:14Z",
    "nvd_published_at" : "2026-05-11T18:16:39Z"
  }
}