What is CVE-2026-100590?

CVE-2026-100590 is a medium-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-09-26.

How severe is CVE-2026-100590?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Openclaw

CVE-2026-100590

OpenClaw before 2026.7.1 contains an authorization bypass vulnerability in the /voice set command that allows non-owner external-channel senders to persist Gateway voice configuration. Attackers with command access can change the voice used by Talk responses for the configured provider, affecting configuration integrity without exposing credentials or granting additional host capabilities.

Vulnerability class: Broken Access Control

Published 2026-09-26.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

github.com/openclaw/openclaw/security/advisories/GHSA-5j27-v2pw-cj9m (vendor-advisory)
www.vulncheck.com/advisories/openclaw-before-2026.7.1-authorization-bypass-via-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-100590?: CVE-2026-100590 is a medium-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-09-26.
How severe is CVE-2026-100590?: Medium severity. CVSS v3 base score is 4.3 out of 10.