GitLab < 19.2.8 / 19.3 < 19.3.5 / 19.4 < 19.4.2 (CVE-2026-14814)

high Nessus Plugin ID 366190

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 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed a user to poison cached responses for raw repository files, causing targeted users' CI/CD pipelines to execute specially crafted content and potentially exposing protected environment variables, due to improper validation of repository references. (CVE-2026-14814)

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 19.2.8, 19.3.5, 19.4.2 or later.

Plugin Details

Severity: High

ID: 366190

File Name: gitlab_cve-2026-14814.nasl

Version: 1.1

Type: Combined

Agent: unix

Family: CGI abuses

Published: 10/15/2026

Updated: 10/15/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.8

Percentile: 57.98

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

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

CVSS Score Source: CVE-2026-14814

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/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: 10/13/2026

Vulnerability Publication Date: 10/12/2026

Reference Information

CVE: CVE-2026-14814

Detections

Analytics