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CVE-2026-19619— 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 has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an unauthenticated user to execute arbitrary JavaScript in the context of

CVSS 4.7 · Medium
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I. Basic Information for CVE-2026-19619

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 19.0 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an unauthenticated user to execute arbitrary JavaScript in the context of a targeted user's session due to improper sanitization of pasted HTML content in the Content Editor.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 19.0 ~ 19.1.8 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19619

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III. Intelligence Information for CVE-2026-19619

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Patches & Fixes for CVE-2026-19619 (1)

Other References for CVE-2026-19619 (1)

Same Patch Batch · GitLab · 2026-09-16 · 11 CVEs total

CVE-2026-79708 8.5 HIGH Incorrect Authorization in GitLab
CVE-2026-78252 8.2 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2025-14871 7.5 HIGH Allocation of Resources Without Limits or Throttling in GitLab
CVE-2026-1168 7.5 HIGH Allocation of Resources Without Limits or Throttling in GitLab
CVE-2024-11222 6.4 MEDIUM Time-of-check Time-of-use (TOCTOU) Race Condition in GitLab
CVE-2026-86341 4.4 MEDIUM Access Control Check Implemented After Asset is Accessed in GitLab
CVE-2026-7514 4.3 MEDIUM Missing Authorization in GitLab
CVE-2026-8030 4.3 MEDIUM Missing Authorization in GitLab
CVE-2026-16794 4.3 MEDIUM Missing Authorization in GitLab
CVE-2026-3855 3.1 LOW Improper Control of Resource Identifiers ('Resource Injection') in GitLab

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-19619

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