GitLab 13.2 < 18.3.6 / 18.4 < 18.4.4 / 18.5 < 18.5.2 (CVE-2025-6171)

medium Nessus Plugin ID 298858

Synopsis

The version of GitLab installed on the remote host is affected by a vulnerability.

Description

The version of GitLab installed on the remote host is affected by a vulnerability, as follows:

- GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.2 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker with reporter access to view branch names and pipeline details by accessing the packages API endpoint even when repository access was disabled. (CVE-2025-6171)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to GitLab version 18.3.6, 18.4.4, 18.5.2 or later.

See Also

http://www.nessus.org/u?c61d1f3b

https://gitlab.com/gitlab-org/gitlab/-/issues/549730

https://hackerone.com/reports/3183740

http://www.nessus.org/u?64953cd2

Plugin Details

Severity: Medium

ID: 298858

File Name: gitlab_cve-2025-6171.nasl

Version: 1.1

Type: combined

Agent: unix

Family: CGI abuses

Published: 2/12/2026

Updated: 2/12/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2025-6171

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:gitlab:gitlab

Required KB Items: installed_sw/GitLab

Exploit Ease: No known exploits are available

Patch Publication Date: 11/15/2025

Vulnerability Publication Date: 11/13/2025

Reference Information

CVE: CVE-2025-6171