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.

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 2026-09-26.

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

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Openclaw Line

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

github.com/openclaw/openclaw/security/advisories/GHSA-fgwg-c3wv-8f45 (vendor-advisory)
www.vulncheck.com/advisories/openclaw-line-before-2026.8.1-access-control-inher… (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.