CVE-2026-5173— Exposed Dangerous Method or Function in GitLab
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I. Basic Information for CVE-2026-5173
Vulnerability Information
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Vulnerability Title
Exposed Dangerous Method or Function in GitLab
Source: NVD (National Vulnerability Database)
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9.6 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to invoke unintended server-side methods through websocket connections due to improper access control.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
暴露危险的方法或函数
Source: NVD (National Vulnerability Database)
Vulnerability Title
GitLab 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司的一个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存在安全漏洞，该漏洞源于访问控制不当，可能导致通过websocket连接调用非预期的服务器端方法。以下版本受到影响：GitLab CE/EE 18.8.9之前版本的16.9.6至18.8版本、18.9.5之前版本的18.9版本和18.10.3之前版本的18.10版本。
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-2026-5173
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Same Patch Batch · GitLab · 2026-04-08 · 11 CVEs total
| CVE-2026-1092 | 7.5 HIGH | Improper Validation of Specified Quantity in Input in GitLab |
| CVE-2025-12664 | 7.5 HIGH | Improper Validation of Specified Quantity in Input in GitLab |
| CVE-2026-1101 | 6.5 MEDIUM | Improper Validation of Specified Quantity in Input in GitLab |
| CVE-2026-1516 | 5.7 MEDIUM | Improper Control of Generation of Code ('Code Injection') in GitLab |
| CVE-2026-4332 | 5.4 MEDIUM | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi |
| CVE-2026-2619 | 4.3 MEDIUM | Incorrect Authorization in GitLab |
| CVE-2026-2104 | 4.3 MEDIUM | Authorization Bypass Through User-Controlled Key in GitLab |
| CVE-2026-1752 | 4.3 MEDIUM | Incorrect Authorization in GitLab |
| CVE-2025-9484 | 4.3 MEDIUM | Missing Authorization in GitLab |
| CVE-2026-4916 | 2.7 LOW | Missing Authorization 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-749
- CVE-2026-25266
Exposed dangerous function in windows host - CVE-2026-35488
Tandoor Recipes — CustomIsShared permits DELETE/PUT on Recip - CVE-2026-30957
OneUptime Synthetic Monitor RCE via exposed Playwright brows - CVE-2026-3483
Ivanti Desktop and Server Management 安全漏洞 - CVE-2026-30921
OneUptime Synthetic Monitor RCE via exposed Playwright brows
V. Comments for CVE-2026-5173
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