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CVE-2026-10087— Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') 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 Enterprise Edition（EE）是美国GitLab公司的一套内容管理系统。 GitLab EE 17.1至18.10.8之前版本、18.11至18.11.5之前版本和19.0至19.0.2之前版本存在跨站脚本漏洞，该漏洞源于分析仪表板中输入清理不当，可能导致具有开发者角色权限的已认证用户代表目标用户执行任意客户端代码。

CVSS 8.7 · High EPSS 0.31% · P22

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab 17.1< 18.10.8 affected
18.11< 18.11.5 affected
19.0< 19.0.2 affected
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I. Basic Information for CVE-2026-10087

Vulnerability Information
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Vulnerability Title
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab EE affecting all versions from 17.1 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code on behalf of a targeted user due to improper input sanitization in the Analytics Dashboard.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab Enterprise Edition（EE） 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab Enterprise Edition（EE）是美国GitLab公司的一套内容管理系统。 GitLab EE 17.1至18.10.8之前版本、18.11至18.11.5之前版本和19.0至19.0.2之前版本存在跨站脚本漏洞，该漏洞源于分析仪表板中输入清理不当，可能导致具有开发者角色权限的已认证用户代表目标用户执行任意客户端代码。
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 17.1 ~ 18.10.8 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-10087

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III. Intelligence Information for CVE-2026-10087

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Other References for CVE-2026-10087 (1)

Same Patch Batch · GitLab · 2026-06-11 · 11 CVEs total

CVE-2026-7250 7.5 HIGH Allocation of Resources Without Limits or Throttling in GitLab
CVE-2026-8589 7.3 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-1500 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2026-6269 5.4 MEDIUM Incorrect Authorization in GitLab
CVE-2026-9204 5.3 MEDIUM Server-Side Request Forgery (SSRF) in GitLab
CVE-2026-10733 4.3 MEDIUM Improper Restriction of Rendered UI Layers or Frames in GitLab
CVE-2026-6277 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-6976 3.7 LOW Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-3553 3.1 LOW Incorrect Authorization in GitLab
CVE-2026-9694 2.6 LOW Improper Neutralization of Substitution Characters in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-79

V. Comments for CVE-2026-10087

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