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CVE-2023-3115— Incorrect User Management in GitLab

Quick assessment

Affected

GitLab GitLab

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GitLab Enterprise Edition（EE）是美国GitLab公司的一套内容管理系统。 GitLab Enterprise Edition存在安全漏洞，该漏洞源于未正确实施单点登录限制。以下版本受到影响：11.11版本至16.2.8之前版本、16.3版本至16.3.5之前版本、16.4版本至16.4.1之前版本。

CVSS 5.4 · Medium EPSS 0.41% · P36 Updated Nov 20, 2025

Possible ATT&CK Techniques 2 AI

T1530 · Data from Cloud Storage T1078 · Valid Accounts

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I. Basic Information for CVE-2023-3115

Vulnerability Information

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Vulnerability Title

Incorrect User Management in GitLab

Source: CVE Program / CVE List V5

Vulnerability Description

An issue has been discovered in GitLab EE affecting all versions affecting all versions from 11.11 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. Single Sign On restrictions were not correctly enforced for indirect project members accessing public members-only project repositories.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

用户管理不正确

Source: CVE Program / CVE List V5

Vulnerability Title

GitLab Enterprise Edition 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
GitLab	GitLab	11.11 ~ 16.2.8	`cpe:2.3:a:gitlab:gitlab::::::::`

II. Public POCs for CVE-2023-3115

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2023-3115

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Other References for CVE-2023-3115 (2)

https://gitlab.com/gitlab-org/gitlab/-/issues/414367 issue-tracking
https://hackerone.com/reports/2004158 technical-description exploit

https://www.cve.org/CVERecord?id=CVE-2023-3115

Same Patch Batch · GitLab · 2023-09-29 · 12 CVEs total

CVE-2023-3413	6.5 MEDIUM	Insertion of Sensitive Information Into Sent Data in GitLab
CVE-2023-3914	5.4 MEDIUM	Incorrect User Management in GitLab
CVE-2023-5198	4.3 MEDIUM	Incorrect Authorization in GitLab
CVE-2023-0989	4.3 MEDIUM	Improper Ownership Management in GitLab
CVE-2023-3920	4.3 MEDIUM	Incorrect Authorization in GitLab
CVE-2023-3917	4.3 MEDIUM	Improper Validation of Specified Type of Input in GitLab
CVE-2023-4532	4.3 MEDIUM	Incorrect Authorization in GitLab
CVE-2023-3906	3.5 LOW	Improper Validation of Specified Type of Input in GitLab
CVE-2023-2233	3.1 LOW	Missing Authorization in GitLab
CVE-2023-3979	3.1 LOW	Incorrect Authorization in GitLab
CVE-2023-3922	3.0 LOW	URL Redirection to Untrusted Site ('Open Redirect') in GitLab

IV. Related Vulnerabilities

Same product: GitLab

Same vendor: GitLab

Same weakness: CWE-286