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Description

OpenClaw before 2026.4.20 contains a tool policy bypass vulnerability allowing bundled MCP and LSP tools to circumvent configured tool restrictions. Attackers with local agent access can append restricted tools to the effective tool set after policy filtering, bypassing profile policies, allow/deny lists, owner-only restrictions, sandbox policies, and subagent policies.

PUBLISHED Reserved 2026-05-08 | Published 2026-05-11 | Updated 2026-05-11 | Assigner VulnCheck




LOW: 2.3CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Problem types

Incorrect Authorization

Product status

Default status
unaffected

Any version before 2026.4.20
affected

2026.4.20 (semver)
unaffected

Credits

zsx (@zsxsoft) reporter

KeenSecurityLab coordinator

qclawer tool

References

github.com/...enclaw/security/advisories/GHSA-qrp5-gfw2-gxv4 (GitHub Security Advisory (GHSA-qrp5-gfw2-gxv4)) vendor-advisory

github.com/...ommit/0e7a992d3f3155199c1acc2dd9a53c5b3a4d3ada (Patch Commit) patch

www.vulncheck.com/...policy-bypass-via-bundled-mcp-lsp-tools (VulnCheck Advisory: OpenClaw < 2026.4.20 - Tool Policy Bypass via Bundled MCP/LSP Tools) third-party-advisory

cve.org (CVE-2026-44998)

nvd.nist.gov (CVE-2026-44998)

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