GHSA-qrp5-gfw2-gxv4: OpenClaw Bundled MCP/LSP Tools Could Bypass Vulnerability

MODERATE
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CWE-862
Published
Advisory Summary

GHSA-qrp5-gfw2-gxv4 is a MODERATE bundled mcp/lsp tools could bypass vulnerability (CWE-862: Missing Authorization) affecting OpenClaw libraries in the npm ecosystem. The issue involves bundled mcp/lsp tools could bypass configured tool policy. Remediation is available by upgrading affected packages to version 2026.4.20.

GHSA-qrp5-gfw2-gxv4 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-qrp5-gfw2-gxv4
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-862: Missing Authorization
Affected Product OpenClaw
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-qrp5-gfw2-gxv4

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: 2026.4.20 
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-qrp5-gfw2-gxv4, 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 2026.4.20), 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-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. 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

## Affected Packages / Versions - Package: `openclaw` (npm) - Affected versions: `< 2026.4.20` - Patched version: `2026.4.20` ## Impact Bundled MCP and LSP tools could be appended to the agent's effective tool set after the normal tool-policy pipeline had already filtered core tools. If an operator configured a restrictive policy, such as a tool profile, explicit allow/deny list, owner-only tool restriction, sandbox tool policy, or subagent tool policy, a bundled MCP/LSP tool could remain available even though the same policy would have denied it. The issue required a configured bundled MCP or LSP tool source and an operator policy that should have restricted that tool. This was a local agent policy-enforcement bypass, not an unauthenticated remote gateway compromise. Severity is medium. ## Fix OpenClaw now applies a final effective tool policy pass to bundled MCP/LSP tools before merging them into the tool set used by normal runs and compaction. The pass covers profile policy, provider profile policy, global/agent/group policies, owner-only filtering, sandbox tool policy, and subagent tool policy. Fix commit: - `0e7a992d3f3155199c1acc2dd9a53c5b3a4d3ada` ## Release Fixed in OpenClaw `2026.4.20`.

GHSA-qrp5-gfw2-gxv4 Affected OpenClaw 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-qrp5-gfw2-gxv4
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/0e7a992d3f3155199c1acc2dd9a53c5b3a4d3ada
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw

Frequently Asked Questions

What is GHSA-qrp5-gfw2-gxv4?
GHSA-qrp5-gfw2-gxv4 is a security vulnerability in OpenClaw involving Bundled MCP/LSP tools could bypass configured tool policy under CWE-862: Missing Authorization.
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.4.20 across affected packages: openclaw.
What version fixes GHSA-qrp5-gfw2-gxv4?
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 CWE is associated with GHSA-qrp5-gfw2-gxv4?
GHSA-qrp5-gfw2-gxv4 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check npm dependencies for GHSA-qrp5-gfw2-gxv4?
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-qrp5-gfw2-gxv4",
  "modified" : "2026-04-25T23:50:38Z",
  "published" : "2026-04-25T23:50:38Z",
  "aliases" : [ ],
  "summary" : "OpenClaw: Bundled MCP/LSP tools could bypass configured tool policy",
  "details" : "## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected versions: `< 2026.4.20`\n- Patched version: `2026.4.20`\n\n## Impact\n\nBundled MCP and LSP tools could be appended to the agent's effective tool set after the normal tool-policy pipeline had already filtered core tools. If an operator configured a restrictive policy, such as a tool profile, explicit allow/deny list, owner-only tool restriction, sandbox tool policy, or subagent tool policy, a bundled MCP/LSP tool could remain available even though the same policy would have denied it.\n\nThe issue required a configured bundled MCP or LSP tool source and an operator policy that should have restricted that tool. This was a local agent policy-enforcement bypass, not an unauthenticated remote gateway compromise. Severity is medium.\n\n## Fix\n\nOpenClaw now applies a final effective tool policy pass to bundled MCP/LSP tools before merging them into the tool set used by normal runs and compaction. The pass covers profile policy, provider profile policy, global/agent/group policies, owner-only filtering, sandbox tool policy, and subagent tool policy.\n\nFix commit:\n\n- `0e7a992d3f3155199c1acc2dd9a53c5b3a4d3ada`\n\n## Release\n\nFixed in OpenClaw `2026.4.20`.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"
  } ],
  "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-qrp5-gfw2-gxv4"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/0e7a992d3f3155199c1acc2dd9a53c5b3a4d3ada"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-25T23:50:38Z",
    "nvd_published_at" : null
  }
}