UpHeron
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Servers and applications

CVE-2025-4979

An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.

Severity
High 7.5
Published
22 May 2025
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
17.10.7, 17.11.3
Sources
NVD

Affected software

SoftwareAffected versions
GitLabServers and applications · cpe:a:gitlab:gitlab
  • Every version before 17.10.7
  • From 17.11.0 before 17.11.3
  • Version 18.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-4979
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-4979