Auth bypass in Openclaw
CVE-2026-100596
OpenClaw versions before 2026.7.1 fail to properly authorize non-owner users executing MCP configuration changes through /mcp set and /mcp unset commands. Attackers can persist arbitrary stdio MCP commands that execute with OpenClaw process privileges when configuration loads, compromising host confidentiality, integrity, and availability.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (15.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-wwx7-573h-pqwc) (vendor-advisory)
- VulnCheck Advisory: OpenClaw before 2026.7.1 Authorization Bypass via MCP Configuration (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100596?
- CVE-2026-100596 is a high-severity vulnerability in Openclaw, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-09-26.
- How severe is CVE-2026-100596?
- High severity. CVSS v3 base score is 8.8 out of 10.