CVE-2021-39891
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I. Basic Information for CVE-2021-39891
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
In all versions of GitLab CE/EE since version 8.0, access tokens created as part of admin's impersonation of a user are not cleared at the end of impersonation which may lead to unnecessary sensitive info disclosure.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
GitLab Enterprise Edition 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab Enterprise Edition是一套内容管理系统。GitLab是美国GitLab公司的一款使用Ruby on Rails开发的、自托管的、Git（版本控制系统）项目仓库应用程序。该程序可用于查阅项目的文件内容、提交历史、Bug列表等。 GitLab EE 存在信息泄露漏洞，该漏洞源于作为管理员模拟用户的一部分创建的访问令牌在模拟结束时不会被清除。
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-2021-39891
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39891.jsonx_refsource_CONFIRM
- https://gitlab.com/gitlab-org/gitlab/-/issues/335137x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-39891
Same Patch Batch · GitLab · 2021-10-05 · 23 CVEs total
| CVE-2021-22261 | 7.3 HIGH | GitLab 跨站脚本漏洞 |
| CVE-2021-39887 | 7.3 HIGH | GitLab 跨站脚本漏洞 |
| CVE-2021-22264 | 6.8 MEDIUM | GitLab 安全漏洞 |
| CVE-2021-39880 | 6.5 MEDIUM | GitLab 安全漏洞 |
| CVE-2021-39867 | 6.5 MEDIUM | GitLab 代码问题漏洞 |
| CVE-2021-39869 | 6.5 MEDIUM | GitLab 信息泄露漏洞 |
| CVE-2021-39872 | 6.5 MEDIUM | GitLab 授权问题漏洞 |
| CVE-2021-39878 | 5.8 MEDIUM | GitLab 跨站脚本漏洞 |
| CVE-2021-39894 | 5.4 MEDIUM | GitLab 代码问题漏洞 |
| CVE-2021-39866 | 5.4 MEDIUM | GitLab 安全漏洞 |
| CVE-2021-22262 | 5.4 MEDIUM | GitLab 安全漏洞 |
| CVE-2021-39875 | 5.3 MEDIUM | GitLab 信息泄露漏洞 |
| CVE-2021-39882 | 5.3 MEDIUM | GitLab 信息泄露漏洞 |
| CVE-2021-39893 | 5.3 MEDIUM | GitLab EE 输入验证错误漏洞 |
| CVE-2021-22257 | 5.3 MEDIUM | GitLab 信息泄露漏洞 |
| CVE-2021-22258 | 4.3 MEDIUM | GitLab 信息泄露漏洞 |
| CVE-2021-39870 | 4.3 MEDIUM | GitLab CE/EE 安全特征问题漏洞 |
| CVE-2021-39889 | 4.3 MEDIUM | GitLab Enterprise Edition 信息泄露漏洞 |
| CVE-2021-39884 | 4.3 MEDIUM | GitLab Enterprise Edition 信息泄露漏洞 |
| CVE-2021-39888 | 4.3 MEDIUM | GitLab EE 信息泄露漏洞 |
Showing top 20 of 23 CVEs. View all on vendor page → →
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
V. Comments for CVE-2021-39891
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