What is CVE-2025-6454?

CVE-2025-6454 is a high-severity vulnerability in Gitlab, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2025-09-12.

How severe is CVE-2025-6454?

High severity. CVSS v3 base score is 8.5 out of 10.

Is CVE-2025-6454 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SSRF in Gitlab

CVE-2025-6454

An issue has been discovered in GitLab CE/EE affecting all versions from 16.11 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed authenticated users to make unintended internal requests through proxy environ…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.006 (46.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Gitlab — versions 16.11, 18.2, 18.3

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Public proof-of-concept exploits

tanjiti/sec_

References

cve@gitlab.com (Release Notes, Vendor Advisory)
cve@gitlab.com (issue-tracking, permissions-required, Broken Link)
cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2025-6454?: CVE-2025-6454 is a high-severity vulnerability in Gitlab, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2025-09-12.
How severe is CVE-2025-6454?: High severity. CVSS v3 base score is 8.5 out of 10.
Is CVE-2025-6454 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.