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.

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 2026-09-26.

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

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

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

github.com/openclaw/openclaw/security/advisories/GHSA-7cp7-87pj-p32v (vendor-advisory)
www.vulncheck.com/advisories/openclaw-before-2026.8.1-authorization-bypass-via-… (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.