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Vulnerabilities

Vulnerability · 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.

Published May 22, 2025 · catalog updated May 22, 2025 · GitLab GitLab

Check this week

CVE-2025-4979 is not in CISA KEV. FIRST estimates a 44.00% chance of exploitation in the next 30 days. Check whether you run GitLab GitLab.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
44.00%
Remediation
Version ranges on file
Affected products
vendor GitLab GitLab 0 <17.10.7

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor GitLab GitLab 0 <17.10.70 <17.10.7

How to fix CVE-2025-4979

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-4979 is not in CISA KEV. FIRST estimates a 44.00% chance of exploitation in the next 30 days. Check whether you run GitLab GitLab.

Which versions are affected?

Compare what you have installed with GitLab GitLab 0 <17.10.7 0 <17.10.7. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 44.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 22, 2025 · EUVD

    Detected

    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.

  2. May 22, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-4979

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-16137

    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 obs

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog May 22, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.