Is CVE-2025-4979 in the CISA KEV catalog?

No. CVE-2025-4979 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-4979?

CVE-2025-4979 has a CVSS v3 base score of 4.9 (MEDIUM).

What is the EPSS score for CVE-2025-4979?

CVE-2025-4979 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-4979?

Upgrade gitlab to 17.11.3 or later.

CVE & CISA-KEV Catalog

CVE-2025-4979

MEDIUM

4.9

CVSS v3

NVD

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.

CWE-1220

How to fix

Remediation Available

gitlabNVD

Affected:>= 17.11.0, < 17.11.3Fixed in:17.11.3CVE-2025-4979derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Other references1

gitlab.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-08-08.