GitLab 18.7 < 19.1.8 / 19.2 < 19.2.6 / 19.3 < 19.3.2 (CVE-2026-85706)

critical Nessus Plugin ID 346267

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 that, under certain conditions, an unauthenticated user could have read arbitrary files from the GitLab server due to improper path confinement and missing authentication enforcement in the repository commits API. (CVE-2026-85706)

- GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that, under certain conditions, an unauthenticated user could have read arbitrary files from the GitLab server due to improper path confinement and missing authentication enforcement in the repository commits API. (CVE-2026-85706)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to GitLab version 19.1.8, 19.2.6, 19.3.2 or later.

See Also

https://gitlab.com/gitlab-org/gitlab/-/work_items/627748

https://hackerone.com/reports/3909881

http://www.nessus.org/u?06af873b

Plugin Details

Severity: Critical

ID: 346267

File Name: gitlab_cve-2026-85706.nasl

Version: 1.1

Type: Combined

Agent: unix

Family: CGI abuses

Published: 9/16/2026

Updated: 9/16/2026

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: Critical

Score: 9.1

Percentile: 99.76

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-85706

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9.3

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

Temporal Vector: CVSS:3.0/E:F/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: 9/12/2026

Vulnerability Publication Date: 9/11/2026

CISA Known Exploited Vulnerability Due Dates: 9/14/2026

Reference Information

CVE: CVE-2026-85706