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CVE-2026-10712— 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 18.11.6版本之前的18.10.x版本、19.0.3版本之前的19.0.x版本和19.1.1版本之前的19.1.x版本存在跨站脚本漏洞，该漏洞源于路径验证不当，可能导致未经身份验证的用户在用户浏览器会话中执行任意JavaScript。

CVSS 8.0 · High EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab 18.10< 18.11.6 affected
19.0< 19.0.3 affected
19.1< 19.1.1 affected
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I. Basic Information for CVE-2026-10712

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 CE/EE affecting all versions from 18.10 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/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 跨站脚本漏洞
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 18.11.6版本之前的18.10.x版本、19.0.3版本之前的19.0.x版本和19.1.1版本之前的19.1.x版本存在跨站脚本漏洞，该漏洞源于路径验证不当，可能导致未经身份验证的用户在用户浏览器会话中执行任意JavaScript。
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 18.10 ~ 18.11.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-10712

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III. Intelligence Information for CVE-2026-10712

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Patches & Fixes for CVE-2026-10712 (1)

Other References for CVE-2026-10712 (1)

Same Patch Batch · GitLab · 2026-06-25 · 13 CVEs total

CVE-2026-10086 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-12053 8.6 HIGH Insertion of Sensitive Information into Log File in GitLab
CVE-2026-5309 5.4 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-11379 5.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-2238 5.3 MEDIUM Missing Authorization in GitLab
CVE-2026-8330 4.4 MEDIUM Insertion of Sensitive Information into Log File in GitLab
CVE-2026-5952 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-5796 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-1606 4.3 MEDIUM Improper Control of Generation of Code ('Code Injection') in GitLab
CVE-2026-0934 3.8 LOW Incorrect Authorization in GitLab
CVE-2026-3176 3.1 LOW Missing Authorization in GitLab
CVE-2026-12635 Reliance on Reverse DNS Resolution for a Security-Critical Action in GitLab

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-10712

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