CVE-2021-39871
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I. Basic Information for CVE-2021-39871
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 13.0, an instance that has the setting to disable Bitbucket Server import enabled is bypassed by an attacker making a crafted API call.
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
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
GitLab 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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 存在安全特征问题漏洞，该漏洞源于自 13.0 版以来的所有 GitLab CE/EE 版本中，一个启用了禁用 Bitbucket Server 导入设置的实例会被攻击者进行精心设计的 API 调用绕过。
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-2021-39871
| # | 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-2021-39871.jsonx_refsource_CONFIRM
- https://gitlab.com/gitlab-org/gitlab/-/issues/340782x_refsource_MISC
- https://hackerone.com/reports/630263x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-39871
Same Patch Batch · GitLab · 2021-10-04 · 12 CVEs total
| CVE-2021-39885 | 8.7 HIGH | GitLab EE 跨站脚本漏洞 |
| CVE-2021-39877 | 7.7 HIGH | GitLab 资源管理错误漏洞 |
| CVE-2021-39868 | 4.3 MEDIUM | GitLab 访问控制错误漏洞 |
| CVE-2021-22259 | 4.3 MEDIUM | GitLab 输入验证错误漏洞 |
| CVE-2021-39874 | 4.3 MEDIUM | GitLab 安全特征问题漏洞 |
| CVE-2021-39883 | 4.3 MEDIUM | GitLab 安全漏洞 |
| CVE-2021-39873 | 4.3 MEDIUM | GitLab CE/EE 安全漏洞 |
| CVE-2021-39896 | 3.8 LOW | GitLab 代码问题漏洞 |
| CVE-2021-39899 | 2.9 LOW | GitLab 授权问题漏洞 |
| CVE-2021-39879 | 2.2 LOW | GitLab 访问控制错误漏洞 |
| CVE-2021-39900 | 2.0 LOW | GitLab 日志信息泄露漏洞 |
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-2021-39871
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