CVE-2025-6454

HIGH

Gitlab < 18.1.6 - SSRF

Title source: rule

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 (3)

[Release Notes, Vendor Advisory] https://about.gitlab.com/releases/2025/09/10/patch-release-gitlab-18-3-2-released/

[Broken Link] https://gitlab.com/gitlab-org/gitlab/-/issues/550766

[Permissions Required] https://hackerone.com/reports/3162711

Scores

CVSS v3 8.5

EPSS 0.0001

EPSS Percentile 2.1%

Attack Vector NETWORK

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

Classification

CWE

CWE-918

Status published

Affected Products (2)

gitlab/gitlab < 18.1.6

gitlab/gitlab < 18.1.6

Timeline

Published Sep 12, 2025

Tracked Since Feb 18, 2026