GitLab 7.12 < 18.1.6 / 18.2 < 18.2.6 / 18.3 < 18.3.2 (CVE-2025-2256)

high Nessus Plugin ID 264596

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:

- The vulnerability exists due to insufficient validation of user-supplied input in SAML responses. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
(CVE-2025-2256)

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 18.1.6, 18.2.6, 18.3.2 or later.

Plugin Details

Severity: High

ID: 264596

File Name: gitlab_cve-2025-2256.nasl

Version: 1.1

Type: combined

Agent: unix

Family: CGI abuses

Published: 9/12/2025

Updated: 9/12/2025

Configuration: Enable thorough checks (optional)

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-2256

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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: 9/12/2025

Vulnerability Publication Date: 9/11/2025

Reference Information

CVE: CVE-2025-2256

Detections

Analytics