What’s Vulnerable › Vulnerabilities

CVE-2025-11984: Authentication Bypass Using an Alternate Path or Channel in GitLab

• Severity: medium (CVSS 6.8 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: 2025-12-11 · updated 2026-10-14
• Weakness: CWE-288

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.

Affected products

• GitLab: from 13.1.0 before 18.4.6; from 18.5.0 before 18.5.4; from 18.6.0 before 18.6.2 — fixed in 18.4.6, 18.5.4, 18.6.2

How to fix

Upgrade to a fixed version: GitLab 18.4.6, 18.5.4, 18.6.2. Check the vendor advisory for mitigations.

References

• https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/
• https://gitlab.com/gitlab-org/gitlab/-/issues/577847
• https://hackerone.com/reports/3322714

Get alerted when CVE-2025-11984 or the next vulnerability affects your stack