Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-5377— Incorrect 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 18.11.1之前版本存在安全漏洞，该漏洞源于问题描述渲染过程中访问控制不当，可能导致经过身份验证的用户访问公共项目中机密或私有问题的标题。

CVSS 4.3 · Medium EPSS 0.39% · P31

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-5377

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Incorrect Authorization in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that could have allowed an authenticated user to access titles of confidential or private issues in public projects due to improper access control in the issue description rendering process.
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
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab 安全漏洞
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 18.11.1之前版本存在安全漏洞，该漏洞源于问题描述渲染过程中访问控制不当，可能导致经过身份验证的用户访问公共项目中机密或私有问题的标题。
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 18.11 ~ 18.11.1 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-5377

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-5377

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-5377 (1)

Same Patch Batch · GitLab · 2026-04-22 · 11 CVEs total

CVE-2026-4922 8.1 HIGH Cross-Site Request Forgery (CSRF) in GitLab
CVE-2026-5262 8.0 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-5816 8.0 HIGH Improper Resolution of Path Equivalence in GitLab
CVE-2025-0186 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2025-3922 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2025-6016 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2026-1660 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2026-6515 5.4 MEDIUM Insufficient Session Expiration in GitLab
CVE-2026-3254 3.5 LOW Improper Restriction of Rendered UI Layers or Frames in GitLab
CVE-2025-9957 2.7 LOW Incorrect Authorization in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-863

V. Comments for CVE-2026-5377

No comments yet

Leave a comment