CVE-2026-2745 Authentication Bypass Using an Alternate Path or Channel in GitLab

Medium 6.8 Published 25 Mar 2026 Updated 26 Mar 2026

Unauthenticated attackers can bypass WebAuthn two-factor authentication to gain unauthorized access to user accounts in GitLab.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2026-2745?

CVE-2026-2745 is a medium-severity authentication bypass vulnerability in Gitlab Gitlab, published on 25 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 7.11 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to bypass WebAuthn two-factor authentication and gain unauthorized access to user accounts due to inconsistent input validation in the authentication process.

Weakness: CWE-288

Which versions are affected by CVE-2026-2745?

1 open source package ship an affected version, including gitlab. It affects 1 product.

Package	Affected	Fixed in
`gitlab` Bitnami	From `7.11.0`	`18.8.7, 18.9.3, 18.10.1`

Products include Gitlab Gitlab.

How do I fix CVE-2026-2745?

Upgrade gitlab to a fixed version for your release line: 18.8.7, 18.9.3 or 18.10.1.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-2745 being exploited?

There is no known exploitation of CVE-2026-2745 in the wild and no public exploit code.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2026-2745, GHSA-gwxm-w4m8-m6mp, UBUNTU-CVE-2026-2745.