CVE-2021-39896 - CVE House
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Status published Low CVE-2021-39896

In all versions of GitLab CE/EE since version 8.0, when...

Vulnerability Description

In all versions of GitLab CE/EE since version 8.0, when an admin uses the impersonate feature twice and stops impersonating, the admin may be logged in as the second user they impersonated, which may lead to repudiation issues.

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 was reported to GitLab by a customer.

References

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Affected Vendor

Affected Software

GitLab
Vulnerable Versions:
>=8.0, <14.1.7, >=14.2, <14.2.5, >=14.3, <14.3.1

Timeline

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

CVSS Vectors

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

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.