GitHub Advisoryadvisory · npm

GHSA-rj6p-xmxr-qj4h OpenClaw: MCP loopback could skip owner-only tool policy for non-owner callers

MEDIUM Published 2026-07-02 Modified 2026-07-02 Official page ↗
Aliases
CVE-2026-53818
Ecosystem
npm
Packages
openclaw
Severity
Moderate
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Weaknesses
CWE-862
Reviewed
2026-07-02

Affected packages

• npm openclaw: < 2026.4.24 → fixed in 2026.4.24

Description

Summary MCP loopback could skip owner-only tool policy for non-owner callers. In affected versions, a non-owner caller reaching the affected loopback path could skip owner-only tool policy and before-tool-call hooks. This advisory is scoped to the named feature and configuration. It does not change OpenClaw's trusted-operator model: authenticated Gateway operators, installed plugins, and intentional local execution surfaces remain trusted unless a separate policy, approval, allowlist, sandbox, or auth boundary is crossed. Impact When the affected feature is enabled and reachable, this could invoke owner-only behavior through that loopback path. Practical impact depends on the operator's configuration and whether lower-trust input can reach that path. Resolution Update to a patched OpenClaw release when one is listed for this advisory. If the Patched versions field is populated, use that version or later. Mitigations restrict MCP loopback access to trusted operators until patched. As general hardening, keep channel and tool allowlists narrow, avoid sharing one Gateway between mutually untrusted users, and disable the affected feature when it is not needed.

Related

Alias · CVE (1)

  • CVE-2026-53818 OpenClaw before 2026.4.24 contains an authorization bypass vulnerability in the MCP loopback feature that allows non-owner callers to skip… vulnerability

Weakness · CWE (1)

  • CWE-862 Missing Authorization weakness

References