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CVE-2026-2238— Missing Authorization 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是美国GitLab公司开源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 CE/EE存在授权问题漏洞，该漏洞源于授权检查不当，可能导致未经身份验证的用户在特定条件下查看公共项目中的机密问题引用。以下版本受到影响：17.5至18.11.6之前版本、19.0及之前版本、19.1及之前版本。

CVSS 5.3 · Medium EPSS 0.27% · P20

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab 17.5< 18.11.6 affected
19.0< 19.0.3 affected
19.1< 19.1.1 affected
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I. Basic Information for CVE-2026-2238

Vulnerability Information
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Vulnerability Title
Missing Authorization in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.5 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an unauthenticated user to view confidential issue references on public projects due to improper authorization checks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司开源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 CE/EE存在授权问题漏洞，该漏洞源于授权检查不当，可能导致未经身份验证的用户在特定条件下查看公共项目中的机密问题引用。以下版本受到影响：17.5至18.11.6之前版本、19.0及之前版本、19.1及之前版本。
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

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 17.5 ~ 18.11.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-2238

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III. Intelligence Information for CVE-2026-2238

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Patches & Fixes for CVE-2026-2238 (1)

Other References for CVE-2026-2238 (1)

Same Patch Batch · GitLab · 2026-06-25 · 13 CVEs total

CVE-2026-10086 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-12053 8.6 HIGH Insertion of Sensitive Information into Log File in GitLab
CVE-2026-10712 8.0 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-5309 5.4 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-11379 5.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-8330 4.4 MEDIUM Insertion of Sensitive Information into Log File in GitLab
CVE-2026-5952 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-5796 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-1606 4.3 MEDIUM Improper Control of Generation of Code ('Code Injection') in GitLab
CVE-2026-0934 3.8 LOW Incorrect Authorization in GitLab
CVE-2026-3176 3.1 LOW Missing Authorization in GitLab
CVE-2026-12635 Reliance on Reverse DNS Resolution for a Security-Critical Action in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-862

V. Comments for CVE-2026-2238

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