Auth bypass in Openclaw Line
CVE-2026-100566
OpenClaw LINE versions before 2026.8.1 contain an access control vulnerability where group allowlist mode silently inherits DM allowFrom values when groupAllowFrom is not explicitly configured. Attackers with group participation can trigger the agent despite configured group allowlist restrictions when DM access is broader than intended group access.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (10.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.1% 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-fgwg-c3wv-8f45) (vendor-advisory)
- VulnCheck Advisory: OpenClaw LINE before 2026.8.1 Access Control Inheritance (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100566?
- CVE-2026-100566 is a medium-severity vulnerability in Openclaw Line, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-09-26.
- How severe is CVE-2026-100566?
- Medium severity. CVSS v3 base score is 6.5 out of 10.