CVE-2021-39890 - CVE House
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Status published Low CVE-2021-39890

It was possible to bypass 2FA for LDAP users and...

Vulnerability Description

It was possible to bypass 2FA for LDAP users and access some specific pages with Basic Authentication in GitLab 14.1.1 and above.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • This vulnerability has been discovered internally by the GitLab team

References

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CVE-2025-9642
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
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CVE-2025-9484
Missing Authorization in GitLab
Medium 4.3

Affected Vendor

Affected Software

GitLab
Vulnerable Versions:
>=14.3, <14.3.1, >=14.2, <14.2.5, >=14.1.1, <14.1.7

Timeline

Official Publish: December 6th, 2021
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.