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CVE-2026-112378— Use of Less Trusted Source 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 企业版（EE）中的一个安全漏洞，该漏洞影响所有 17.8 至 19.3.6 之前的版本、19.4 至 19.4.3 之前的版本，以及 19.5 至 19.5.1 之前的版本。在特定条件下，该漏洞可能允许已认证用户绕过有效的订阅验证，访问付费 AI 功能，其根源在于计费资格检查中缺乏充分的服务器端验证。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-112378

Vulnerability Information
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Vulnerability Title
Use of Less Trusted Source in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab EE affecting all versions from 17.8 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that under certain conditions could have allowed an authenticated user to access paid AI features without a valid subscription due to insufficient server-side validation in billing eligibility checks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用不可信的源
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 17.8 ~ 19.3.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-112378

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III. Intelligence Information for CVE-2026-112378

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Other References for CVE-2026-112378 (1)

Same Patch Batch · GitLab · 2026-10-21 · 11 CVEs total

CVE-2026-15723 8.2 HIGH Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in Gi
CVE-2026-112212 7.5 HIGH Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in GitLab
CVE-2026-12664 6.8 MEDIUM Incorrect Authorization in GitLab
CVE-2026-16255 5.9 MEDIUM Incorrect Authorization in GitLab
CVE-2026-13319 4.3 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-105777 4.3 MEDIUM Insertion of Sensitive Information Into Sent Data in GitLab
CVE-2026-105711 3.5 LOW Use of Cache Containing Sensitive Information in GitLab
CVE-2026-14288 3.1 LOW Use of Incorrectly-Resolved Name or Reference in GitLab
CVE-2026-112326 3.1 LOW Improper Cleanup on Thrown Exception in GitLab
CVE-2026-103515 2.7 LOW Incorrect Authorization in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-348

V. Comments for CVE-2026-112378

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