Auth bypass in Chatwoot
CVE-2026-4990
A security vulnerability has been detected in chatwoot up to 4.11.1. The affected element is an unknown function of the file /app/login of the component Signup Endpoint. Such manipulation of the argument signupEnabled with the input true leads to improper authorization. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
EPSS: 0.004 (27.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- N/a Chatwoot — versions 4.11.0, 4.11.1
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-4990?
- CVE-2026-4990 is a high-severity vulnerability in Chatwoot, classified under Incorrect Privilege Assignment. CVSS score: 7.3/10. Published 2026-03-27.
- How severe is CVE-2026-4990?
- High severity. CVSS v3 base score is 7.3 out of 10.