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CVE-2025-8770— 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）是美国GitLab公司的一套内容管理系统。 GitLab Enterprise Edition 18.0.6之前版本、18.1.4之前版本和18.2.2之前版本存在安全漏洞，该漏洞源于特定权限用户可能绕过合并请求批准策略。

CVSS 6.5 · Medium EPSS 0.34% · P25

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token
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I. Basic Information for CVE-2025-8770

Vulnerability Information
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Vulnerability Title
Authorization Bypass Through User-Controlled Key in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
An issue has been discovered in GitLab EE affecting all versions from 18.0 prior to 18.0.6, 18.1 prior to 18.1.4, and 18.2 prior to 18.2.2 that could have allowed authenticated users with specific access to bypass merge request approval policies by manipulating approval rule identifiers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab Enterprise Edition（EE）是美国GitLab公司的一套内容管理系统。 GitLab Enterprise Edition 18.0.6之前版本、18.1.4之前版本和18.2.2之前版本存在安全漏洞，该漏洞源于特定权限用户可能绕过合并请求批准策略。
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 18.0 ~ 18.0.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2025-8770

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III. Intelligence Information for CVE-2025-8770

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Same Patch Batch · GitLab · 2025-08-13 · 11 CVEs total

CVE-2025-6186 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2025-7739 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2025-7734 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2024-12303 6.7 MEDIUM Incorrect Privilege Assignment in GitLab
CVE-2024-10219 6.5 MEDIUM Incorrect Authorization in GitLab
CVE-2025-1477 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2025-2614 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2025-2937 6.5 MEDIUM Inefficient Regular Expression Complexity in GitLab
CVE-2025-5819 5.0 MEDIUM Incorrect Permission Assignment for Critical Resource in GitLab
CVE-2025-2498 3.1 LOW Insufficient Granularity of Access Control in GitLab

IV. Related Vulnerabilities

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

V. Comments for CVE-2025-8770

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