What is CVE-2026-100587?

CVE-2026-100587 is a high-severity vulnerability in Openclaw, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-09-26.

How severe is CVE-2026-100587?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Openclaw

CVE-2026-100587

OpenClaw versions before 2026.7.1 fail to properly validate owner authorization in the Codex computer-use installation command. Non-owner channel senders can install arbitrary plugins and execute MCP processes with OpenClaw user privileges, affecting host confidentiality, integrity, and availability.

Vulnerability class: Broken Access Control

Published 2026-09-26.

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

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-862 — Missing Authorization

References

github.com/openclaw/openclaw/security/advisories/GHSA-pjjr-5qhr-5w6r (vendor-advisory)
www.vulncheck.com/advisories/openclaw-before-2026.7.1-authorization-bypass-via-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-100587?: CVE-2026-100587 is a high-severity vulnerability in Openclaw, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-09-26.
How severe is CVE-2026-100587?: High severity. CVSS v3 base score is 8.8 out of 10.