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AI agent vulnerability · OpenClaw

GHSA-qrp5-gfw2-gxv4: OpenClaw: Bundled MCP/LSP tools could bypass configured tool policy

mediumCVSS 4.0 4.8

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.

Published Apr 25, 2026

Affected packages

openclaw

Ecosystem
npm
Affected
< 2026.4.20
Fixed in
2026.4.20
Check
npm ls openclaw

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

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.

Credited to zsxsoft, KeenSecurityLab, qclawer.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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