UpHeron
All vulnerabilities

Servers and applications

CVE-2023-6680

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.

Severity
High 8.1
Published
15 Dec 2023
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
16.4.4, 16.5.4, 16.6.2
Sources
NVD

Affected software

SoftwareAffected versions
GitLabServers and applications · cpe:a:gitlab:gitlab
  • From 11.6 before 16.4.4
  • From 16.5 before 16.5.4
  • From 16.6 before 16.6.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-6680
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-6680