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CVE-2026-0602— Authentication Bypass Using an Alternate Path or Channel in GitLab

CVSS 4.3 · Medium EPSS 0.02% · P4
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I. Basic Information for CVE-2026-0602

Vulnerability Information
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Vulnerability Title
Authentication Bypass Using an Alternate Path or Channel in GitLab
Source: NVD (National Vulnerability Database)
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to disclose metadata from private issues, merge requests, epics, milestones, or commits due to improper filtering in the snippet rendering process under certain circumstances.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: NVD (National Vulnerability Database)
Vulnerability Title
GitLab 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司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存在安全漏洞，该漏洞源于代码片段渲染过程中过滤不当，可能导致经过身份验证的用户泄露私有议题、合并请求、史诗、里程碑或提交的元数据。
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 15.6 ~ 18.7.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-0602

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III. Intelligence Information for CVE-2026-0602

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Same Patch Batch · GitLab · 2026-03-11 · 14 CVEs total

CVE-2026-10908.7 HIGHImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-10697.5 HIGHUncontrolled Recursion in GitLab
CVE-2025-145137.5 HIGHImproper Validation of Specified Quantity in Input in GitLab
CVE-2025-139297.5 HIGHAllocation of Resources Without Limits or Throttling in GitLab
CVE-2025-136906.5 MEDIUMAllocation of Resources Without Limits or Throttling in GitLab
CVE-2025-125766.5 MEDIUMAllocation of Resources Without Limits or Throttling in GitLab
CVE-2026-38485.0 MEDIUMImproper Neutralization of CRLF Sequences ('CRLF Injection') in GitLab
CVE-2026-17324.3 MEDIUMImproper Removal of Sensitive Information Before Storage or Transfer in GitLab
CVE-2026-16634.3 MEDIUMMissing Authorization in GitLab
CVE-2025-125554.3 MEDIUMIncorrect Authorization in GitLab
CVE-2026-12304.1 MEDIUMUse of Incorrectly-Resolved Name or Reference in GitLab
CVE-2025-127043.5 LOWMissing Authorization in GitLab
CVE-2025-126972.2 LOWImproper Encoding or Escaping of Output in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-288

V. Comments for CVE-2026-0602

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