GitLab 15.7 < 18.9.7 / 18.10 < 18.10.6 / 18.11 < 18.11.3 (CVE-2026-6883)

medium Nessus Plugin ID 314545

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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:

- Missing Authorization in GitLab (CVE-2026-6883)

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 18.9.7, 18.10.6, 18.11.3 or later.

Plugin Details

Severity: Medium

ID: 314545

File Name: gitlab_cve-2026-6883.nasl

Version: 1.3

Type: Combined

Agent: unix

Family: CGI abuses

Published: 5/14/2026

Updated: 5/18/2026

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:P/A:N

CVSS Score Source: CVE-2026-6883

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: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: 5/14/2026

Vulnerability Publication Date: 5/14/2026

Reference Information

CVE: CVE-2026-6883

IAVA: 2026-A-0483

Detections

Analytics