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CVE-2026-8937— Missing Authorization 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 已修复 GitLab CE/EE 中的一个安全问题，该问题影响以下版本：19.0 至 19.2.6（不含 19.2.7）、19.3 至 19.3.2（不含 19.3.3）以及 19.4 至 19.4.0（不含 19.4.1）。由于可见 Epic（史诗）中关联的工作项（work items）缺少必要的授权检查，在特定条件下，已认证用户可能能够读取其无权访问的项目中的私有子 Issue（子问题）内容，包括标题和描述。

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-8937

Vulnerability Information
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Vulnerability Title
Missing Authorization 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 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to read private child issue contents, including titles and descriptions, from projects they had no access to, due to missing authorization checks on linked work items within visible epics.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 19.0 ~ 19.2.7 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8937

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III. Intelligence Information for CVE-2026-8937

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Patches & Fixes for CVE-2026-8937 (1)

Other References for CVE-2026-8937 (1)

Same Patch Batch · GitLab · 2026-09-29 · 4 CVEs total

CVE-2026-84739 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-10518 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2026-4523 3.7 LOW Missing Authorization in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-862

V. Comments for CVE-2026-8937

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