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CVE-2026-3857— Cross-Site Request Forgery (CSRF) 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 17.10至18.8.7之前版本、18.9至18.9.3之前版本和18.10至18.10.1之前版本存在跨站请求伪造漏洞，该漏洞源于跨站请求伪造保护不足，可能导致未经身份验证的用户代表经过身份验证的用户执行任意GraphQL变更。

CVSS 8.1 · High EPSS 0.32% · P23
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I. Basic Information for CVE-2026-3857

Vulnerability Information
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Vulnerability Title
Cross-Site Request Forgery (CSRF) in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to execute arbitrary GraphQL mutations on behalf of authenticated users due to insufficient CSRF protection.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab 跨站请求伪造漏洞
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 CE/EE 17.10至18.8.7之前版本、18.9至18.9.3之前版本和18.10至18.10.1之前版本存在跨站请求伪造漏洞，该漏洞源于跨站请求伪造保护不足，可能导致未经身份验证的用户代表经过身份验证的用户执行任意GraphQL变更。
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 17.10 ~ 18.8.7 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-3857

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III. Intelligence Information for CVE-2026-3857

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Patches & Fixes for CVE-2026-3857 (1)

Same Patch Batch · GitLab · 2026-03-25 · 11 CVEs total

CVE-2026-2995 7.7 HIGH Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab
CVE-2026-3988 7.5 HIGH Inefficient Algorithmic Complexity in GitLab
CVE-2026-2745 6.8 MEDIUM Authentication Bypass Using an Alternate Path or Channel in GitLab
CVE-2026-1724 6.8 MEDIUM Missing Authentication for Critical Function in GitLab
CVE-2025-13436 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2025-13078 6.5 MEDIUM Improper Validation of Specified Quantity in Input in GitLab
CVE-2026-2973 5.4 MEDIUM Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-2726 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2025-14595 4.3 MEDIUM Missing Authorization in GitLab
CVE-2026-4363 3.7 LOW Incorrect Authorization in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-352

V. Comments for CVE-2026-3857

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