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CVE-2026-3848— Improper Neutralization of CRLF Sequences ('CRLF Injection') in GitLab

CVSS 5.0 · Medium EPSS 0.02% · P6
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I. Basic Information for CVE-2026-3848

Vulnerability Information
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Vulnerability Title
Improper Neutralization of CRLF Sequences ('CRLF Injection') in GitLab
Source: NVD (National Vulnerability Database)
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.11 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 make unintended internal requests through proxy environments under certain conditions due to improper input validation in import functionality.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对CRLF序列的转义处理不恰当(CRLF注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
GitLab 注入漏洞
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存在注入漏洞，该漏洞源于导入功能输入验证不当，可能导致经过身份验证的用户在特定条件下通过代理环境发起非预期的内部请求。
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 8.11 ~ 18.7.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-3848

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III. Intelligence Information for CVE-2026-3848

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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-2026-17324.3 MEDIUMImproper Removal of Sensitive Information Before Storage or Transfer in GitLab
CVE-2026-16634.3 MEDIUMMissing Authorization in GitLab
CVE-2026-06024.3 MEDIUMAuthentication Bypass Using an Alternate Path or Channel 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-93

V. Comments for CVE-2026-3848

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