What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-25 · updated 2026-06-17
• Weakness: CWE-288

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.

Affected products

• GitLab: from 7.11.0 before 18.8.7; from 18.9.0 before 18.9.3; 18.10.0 — fixed in 18.8.7, 18.9.3

How to fix

Upgrade to a fixed version: GitLab 18.8.7, 18.9.3. Check the vendor advisory for mitigations.

References

• https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/
• https://gitlab.com/gitlab-org/gitlab/-/work_items/590810
• https://hackerone.com/reports/3557844

Get alerted when CVE-2026-2745 or the next vulnerability affects your stack