Vulnerability · Published Mar 25, 2026 · Assigned by GitLab
CVE-2026-2745Authentication Bypass Using an Alternate Path or Channel in GitLab
Medium 6.8
In plain English
A medium-severity authentication bypass in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.4%top 70.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
Weakness: CWE-288 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
References
- HackerOne Bug Bounty Report #3557844 technical-description, exploit, permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/590810
- https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/