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CVE-2025-13874— Authorization Bypass Through User-Controlled Key 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）和GitLab Community Edition（CE）都是美国GitLab公司的产品。GitLab Enterprise Edition是一套内容管理系统。GitLab Community Edition是一种社区版 GitLab 。 GitLab CE/EE 15.1至18.9.7之前版本、18.10至18.10.6之前版本和18.11至18.11.3之前版本存在安全漏洞，该漏洞源于可能导致具有Guest权限的经过身份验证的用户查看其无权访问

CVSS 4.3 · Medium EPSS 0.23% · P12

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab 15.1< 18.9.7 affected
18.10< 18.10.6 affected
18.11< 18.11.3 affected
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I. Basic Information for CVE-2025-13874

Vulnerability Information
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Vulnerability Title
Authorization Bypass Through User-Controlled Key in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.1 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with Guest permissions to view issues in projects they were not authorized to access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab Enterprise Edition（EE）和GitLab Community Edition（CE） 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab Enterprise Edition（EE）和GitLab Community Edition（CE）都是美国GitLab公司的产品。GitLab Enterprise Edition是一套内容管理系统。GitLab Community Edition是一种社区版 GitLab 。 GitLab CE/EE 15.1至18.9.7之前版本、18.10至18.10.6之前版本和18.11至18.11.3之前版本存在安全漏洞，该漏洞源于可能导致具有Guest权限的经过身份验证的用户查看其无权访问
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 15.1 ~ 18.9.7 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2025-13874

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III. Intelligence Information for CVE-2025-13874

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Patches & Fixes for CVE-2025-13874 (1)

Other References for CVE-2025-13874 (1)

Same Patch Batch · GitLab · 2026-05-14 · 24 CVEs total

CVE-2026-7481 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-7377 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-6073 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2025-14869 7.5 HIGH Improper Validation of Specified Quantity in Input in GitLab
CVE-2025-14870 7.5 HIGH Allocation of Resources Without Limits or Throttling in GitLab
CVE-2026-1659 7.5 HIGH Allocation of Resources Without Limits or Throttling in GitLab
CVE-2026-1322 6.8 MEDIUM Business Logic Errors in GitLab
CVE-2026-8280 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2026-1184 6.5 MEDIUM Deserialization of Untrusted Data in GitLab
CVE-2026-4527 6.5 MEDIUM Cross-Site Request Forgery (CSRF) in GitLab
CVE-2026-4524 6.5 MEDIUM Authentication Bypass Using an Alternate Path or Channel in GitLab
CVE-2026-3160 5.8 MEDIUM Unintended Proxy or Intermediary ('Confused Deputy') in GitLab
CVE-2025-12669 5.4 MEDIUM Improper Control of Generation of Code ('Code Injection') in GitLab
CVE-2026-6335 5.4 MEDIUM Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-3074 4.3 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-3073 4.3 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-3607 4.3 MEDIUM Access Control Check Implemented After Asset is Accessed in GitLab
CVE-2026-1338 4.3 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-6063 4.3 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-8144 4.3 MEDIUM Missing Authorization in GitLab

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-639

V. Comments for CVE-2025-13874

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