Name: CVE-2023-6680: Improper Certificate Validation
Creator: Rapid7
Published: 2023-12-15T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2023-6680, CVSS 7.4, EPSS 0.00026

An improper certificate validation issue in Smartcard authentication in GitLab EE affecting all versions from 11.6 prior to 16.4.4, 16.5 prior to 16.5.4, and 16.6 prior to 16.6.2 allows an attacker to authenticate as another user given their public key if they use Smartcard authentication. Smartcard authentication is an experimental feature and has to be manually enabled by an administrator.

CVSS Details

CVSS 3.1 Base Score: 7.4
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Freebsd	—	Upgrade gitlab-ce	Dec 10, 2025	Dec 14, 2023
Gitlab Gitlab	—	Upgrade Gitlab to the latest version	Apr 22, 2025	Dec 15, 2023

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CVSS Details

Covered by Rapid7

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