CVE-2023-3920— Incorrect Authorization in GitLab
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I. Basic Information for CVE-2023-3920
Vulnerability Information
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Vulnerability Title
Incorrect Authorization in GitLab
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue has been discovered in GitLab affecting all versions starting from 11.2 before 16.2.8, all versions starting from 16.3 before 16.3.5, all versions starting from 16.4 before 16.4.1. It was possible that a maintainer to create a fork relationship between existing projects contrary to the documentation.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
GitLab 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司的一个开源的端到端软件开发平台，具有内置的版本控制、问题跟踪、代码审查、CI/CD（持续集成和持续交付）等功能。 GitLab存在数据伪造问题漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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
II. Public POCs for CVE-2023-3920
| # | POC Description | Source Link | Shenlong Link |
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- https://gitlab.com/gitlab-org/gitlab/-/issues/417481issue-tracking
- https://nvd.nist.gov/vuln/detail/CVE-2023-3920
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-2023-3115 | 5.4 MEDIUM | Incorrect User Management 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-2023-3917 | 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
- CVE-2026-3254
Improper Restriction of Rendered UI Layers or Frames in GitL - CVE-2026-4922
Cross-Site Request Forgery (CSRF) in GitLab - CVE-2025-0186
Allocation of Resources Without Limits or Throttling in GitL - CVE-2025-3922
Allocation of Resources Without Limits or Throttling in GitL - CVE-2025-6016
Allocation of Resources Without Limits or Throttling in GitL
Same vendor: GitLab
- CVE-2026-3254
Improper Restriction of Rendered UI Layers or Frames in GitL - CVE-2026-4922
Cross-Site Request Forgery (CSRF) in GitLab - CVE-2025-0186
Allocation of Resources Without Limits or Throttling in GitL - CVE-2025-3922
Allocation of Resources Without Limits or Throttling in GitL - CVE-2025-6016
Allocation of Resources Without Limits or Throttling in GitL
Same weakness: CWE-863
- CVE-2026-42571
Privilege Escalation Attack affecting Pelican Web UI - CVE-2025-15633
HCL BigFix WebUI is affected by an improper authorization vu - CVE-2026-42296
Argo Workflows has incomplete fix for CVE-2026-31892: hostNe - CVE-2025-66170
Apache CloudStack: Any user can list backups that they shoul - CVE-2026-41903
FreeScout IDOR Vulnerability: PERM_EDIT_USERS allows modifyi
V. Comments for CVE-2023-3920
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