Advisories

OpenClaw 2026.5.20 < 2026.6.6 Authorization Bypass via MCP loopback

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severity
high
date
Affecting
  • OpenClaw >= 2026.5.20, < 2026.6.6

CWE
  • CWE-732 Incorrect Permission Assignment for Critical Resource
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Credit
Edward-x (@YLChen-007)
Description
OpenClaw versions 2026.5.20 before 2026.6.6 contain an authorization bypass vulnerability in the MCP loopback feature that allows lower-trust callers to execute owner-only tools. Attackers can bypass authorization checks through configured input paths to execute or persist actions beyond their intended permissions.

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