GitLab 13.6 < 18.11.6 / 19.0 < 19.0.3 / 19.1 < 19.1.1 (CVE-2026-5796)

medium Nessus Plugin ID 322744

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 13.6 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with Reporter-level group permissions to view package metadata from projects with the Package Registry disabled due to incorrect authorization checks in the group packages feature. (CVE-2026-5796)

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 18.11.6, 19.0.3, 19.1.1 or later.

See Also

https://gitlab.com/gitlab-org/gitlab/-/work_items/596035

https://hackerone.com/reports/3646902

http://www.nessus.org/u?3f25dd23

http://www.nessus.org/u?44b4d43c

Plugin Details

Severity: Medium

ID: 322744

File Name: gitlab_cve-2026-5796.nasl

Version: 1.1

Type: Combined

Agent: unix

Family: CGI abuses

Published: 6/25/2026

Updated: 6/25/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

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-2026-5796

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: 6/25/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-5796