GitLab 8.8 < 19.0.5 / 19.1 < 19.1.3 / 19.2 < 19.2.1 (CVE-2026-14351)

medium Nessus Plugin ID 331391

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 8.8 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an unauthenticated user to view the title of a confidential issue through a publicly accessible merge request due to improper authorization checks. (CVE-2026-14351)

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 19.0.5, 19.1.3, 19.2.1 or later.

See Also

https://gitlab.com/gitlab-org/gitlab/-/work_items/604691

https://hackerone.com/reports/3708242

http://www.nessus.org/u?0157b5b2

http://www.nessus.org/u?690b87e5

Plugin Details

Severity: Medium

ID: 331391

File Name: gitlab_cve-2026-14351.nasl

Version: 1.1

Type: Combined

Agent: unix

Family: CGI abuses

Published: 7/31/2026

Updated: 7/31/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

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-2026-14351

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: 7/29/2026

Vulnerability Publication Date: 7/29/2026

Reference Information

CVE: CVE-2026-14351