GitLab 18.3 < 19.1.7 / 19.2 < 19.2.5 / 19.3 < 19.3.1 (CVE-2026-4398)

medium Nessus Plugin ID 341085

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:

- Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
(CVE-2026-4398)

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 19.1.7, 19.2.5, 19.3.1 or later.

Plugin Details

Severity: Medium

ID: 341085

File Name: gitlab_cve-2026-4398.nasl

Version: 1.1

Type: Combined

Agent: unix

Family: CGI abuses

Published: 8/27/2026

Updated: 8/27/2026

Configuration: Enable thorough checks (optional)

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

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.95

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2026-4398

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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: 8/27/2026

Vulnerability Publication Date: 4/9/2026

Reference Information

CVE: CVE-2026-4398

Detections

Analytics