High severity · published May 22, 2025
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
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
before 17.10.7; before 17.10.7; 17.11.0 before 17.11.3; 17.11.0 before 17.11.3; 18.0.0; 18.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-4979
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-4979
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/524455
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