GitLab 16.8 < 18.5.0 (CVE-2026-1751)

low Nessus Plugin ID 298877

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:

- A vulnerability has been discovered in GitLab CE/EE affecting all versions starting with 16.8 before 18.5.0 that could have allowed unauthorized edits to merge request approval rules under certain conditions. (CVE-2026-1751)

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 18.5.0 or later.

See Also

http://www.nessus.org/u?127b2429

https://gitlab.com/gitlab-org/gitlab/-/issues/519340

https://hackerone.com/reports/2980839

Plugin Details

Severity: Low

ID: 298877

File Name: gitlab_cve-2026-1751.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: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.9

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 2

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

CVSS Score Source: CVE-2026-1751

CVSS v3

Risk Factor: Low

Base Score: 3.1

Temporal Score: 2.8

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

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

Vulnerability Information

CPE: cpe:/a:gitlab:gitlab

Required KB Items: installed_sw/GitLab

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/2/2026

Vulnerability Publication Date: 2/2/2026

Reference Information

CVE: CVE-2026-1751