GitLab 5.2 < 18.2.8 / 18.3 < 18.3.4 / 18.4 < 18.4.2 (CVE-2025-2934)

medium Nessus Plugin ID 269801

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 5.2 prior to 18.2.8, 18.3 prior to 18.3.4, and 18.4 prior to 18.4.2 that could have allowed an authenticated attacker to create a denial of service condition by configuring malicious webhook endpoints that send crafted HTTP responses.
(CVE-2025-2934)

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 18.2.8, 18.3.4, 18.4.2 or later.

See Also

http://www.nessus.org/u?36a8a621

http://www.nessus.org/u?f44be4bc

https://gitlab.com/gitlab-org/gitlab/-/issues/528979

https://hackerone.com/reports/3058791

Plugin Details

Severity: Medium

ID: 269801

File Name: gitlab_cve-2025-2934.nasl

Version: 1.2

Type: combined

Agent: unix

Family: CGI abuses

Published: 10/9/2025

Updated: 10/10/2025

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2025-2934

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:N/I:N/A:L

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: 10/9/2025

Vulnerability Publication Date: 10/9/2025

Reference Information

CVE: CVE-2025-2934

IAVA: 2025-A-0726