Auth bypass in Openclaw
CVE-2026-100557
OpenClaw versions before 2026.8.1 contain an authorization bypass vulnerability in skill tool dispatch that fails to carry the sender's owner status. Non-owner senders authorized to invoke skill commands can access owner-only tools and server credentials reserved for owners.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.002 (14.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.8% 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-7cp7-87pj-p32v) (vendor-advisory)
- VulnCheck Advisory: OpenClaw before 2026.8.1 Authorization Bypass via Skill Tool Dispatch (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100557?
- CVE-2026-100557 is a high-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 8.3/10. Published 2026-09-26.
- How severe is CVE-2026-100557?
- High severity. CVSS v3 base score is 8.3 out of 10.