WebUI Variable Disclosure in GitLab CE/EE by GitLab
CVE-2025-4979

7.5HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
22 May 2025

What is CVE-2025-4979?

A security flaw in GitLab CE/EE allows attackers to potentially expose CI variables that they did not create. By crafting their own variables, attackers may access masked or hidden information through the WebUI's HTTP responses. This issue impacts various versions of GitLab and underscores the need for timely updates to safeguard sensitive data.

Affected Version(s)

GitLab 0 < 17.10.7

GitLab 17.11 < 17.11.3

GitLab 18.0 < 18.0.1

References

https://gitlab.com/gitlab-org/gitlab/-/issues/524455
issue-trackingpermissions-required

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This vulnerability was discovered internally by a GitLab team member.
.