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.

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 l…

EPSS: 0.001 (17.0th 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

VDB-353877 | chatwoot Signup Endpoint login improper authorization (technical-description, vdb-entry)
VDB-353877 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
Submit #772515 | chatwoot 4.11.1 Business Logic Errors (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.