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CVE-2025-4979— Insufficient Granularity of Access Control 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 Enterprise Edition（EE）和GitLab Community Edition（CE） 18.0.1之前版本存在安全漏洞，该漏洞源于攻击者可能能够通过简单地创建自己的变量并观察HTT

CVSS 4.9 · Medium EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-4979

Vulnerability Information
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Vulnerability Title
Insufficient Granularity of Access Control in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1220
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 Enterprise Edition（EE）和GitLab Community Edition（CE） 18.0.1之前版本存在安全漏洞，该漏洞源于攻击者可能能够通过简单地创建自己的变量并观察HTT
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 0 ~ 17.10.7 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2025-4979

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III. Intelligence Information for CVE-2025-4979

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Same Patch Batch · GitLab · 2025-05-22 · 8 CVEs total

CVE-2025-0993 7.5 HIGH Allocation of Resources Without Limits or Throttling in GitLab
CVE-2024-12093 6.8 MEDIUM Improper Validation of Consistency within Input in GitLab
CVE-2025-2853 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2025-3111 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2025-0605 4.6 MEDIUM Weak Authentication in GitLab
CVE-2025-0679 4.3 MEDIUM Exposure of Private Personal Information to an Unauthorized Actor in GitLab
CVE-2025-1110 2.7 LOW Insufficient Granularity of Access Control in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-1220

V. Comments for CVE-2025-4979

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