Unauthorized Access Vulnerability in GitLab CE/EE Affecting Multiple Versions
CVE-2026-2745

6.8MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
25 March 2026

What is CVE-2026-2745?

A security flaw in GitLab CE/EE could enable an unauthenticated user to bypass WebAuthn two-factor authentication. This vulnerability arises from inconsistent input validation during the authentication process, potentially leading to unauthorized access to user accounts. All versions from 7.11 prior to 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 are affected. GitLab has released patches to remediate this issue and advised users to update to secure versions as soon as possible.

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Deploy the Patch

Affected Version(s)

GitLab 7.11 < 18.8.7

GitLab 18.9 < 18.9.3

GitLab 18.10 < 18.10.1

References

https://hackerone.com/reports/3557844
technical-descriptionexploitpermissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/590810
https://about.gitlab.com/releases/2026/03/25/patch-releas...

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [a0xnirudh](https://hackerone.com/a0xnirudh) for reporting this vulnerability through our HackerOne bug bounty program
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