CVE-2025-6454

high

Description

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 environments by injecting crafted sequences.

References

https://hackerone.com/reports/3162711

https://gitlab.com/gitlab-org/gitlab/-/issues/550766

https://about.gitlab.com/releases/2025/09/10/patch-release-gitlab-18-3-2-released/

Details

Source: Mitre, NVD

Published: 2025-09-12

Updated: 2025-09-20

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

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

Severity: High

EPSS

EPSS: 0.00015