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CVE-2026-6336— Incorrect Authorization in GitLab

CVSS 5.3 · Medium EPSS 0.26% · P17

Possible ATT&CK Techniques 1AI

T1530 · Data from Cloud Storage

Affected Version Matrix 3

VendorProductVersion RangeStatus
GitLabGitLab16.6< 19.0.5affected
19.1< 19.1.3affected
19.2< 19.2.1affected
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I. Basic Information for CVE-2026-6336

Vulnerability Information
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Vulnerability Title
Incorrect Authorization in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.6 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an unauthorized user to view project import source information due to a missing authorization check.
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
授权机制不正确
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 16.6版本至19.0.5之前版本、19.1版本至19.1.3之前版本和19.2版本至19.2.1之前版本存在授权问题漏洞，该漏洞源于缺少授权检查，可能导致未经授权的用户查看项目导入源信息。
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

VendorProductAffected VersionsCPESubscribe
GitLabGitLab 16.6 ~ 19.0.5 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6336

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III. Intelligence Information for CVE-2026-6336

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Patches & Fixes for CVE-2026-6336 (1)

Other References for CVE-2026-6336 (1)

Same Patch Batch · GitLab · 2026-07-29 · 13 CVEs total

CVE-2026-62678.5 HIGHInsertion of Sensitive Information Into Sent Data in GitLab
CVE-2026-124368.4 HIGHImproperly Controlled Modification of Dynamically-Determined Object Attributes in GitLab
CVE-2026-159757.5 HIGHAllocation of Resources Without Limits or Throttling in GitLab
CVE-2026-131136.5 MEDIUMTime-of-check Time-of-use (TOCTOU) Race Condition in GitLab
CVE-2026-165535.4 MEDIUMInsufficiently Protected Credentials in GitLab
CVE-2026-143414.9 MEDIUMMissing Authorization in GitLab
CVE-2026-30934.7 MEDIUMImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-46724.3 MEDIUMMissing Authorization in GitLab
CVE-2026-143514.3 MEDIUMExposure of Sensitive Information Through Metadata in GitLab
CVE-2026-150774.3 MEDIUMImproper Neutralization of Input Used for LLM Prompting in GitLab
CVE-2026-158314.3 MEDIUMGeneration of Incorrect Security Tokens in GitLab
CVE-2025-145623.1 LOWIncorrect Authorization in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-863

V. Comments for CVE-2026-6336

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