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CVE-2026-103515— 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 已修复 GitLab Enterprise Edition (EE) 中的一个安全漏洞，该漏洞影响 19.2 至 19.3.6 之前的所有版本、19.4 至 19.4.3 之前的所有版本，以及 19.5 至 19.5.1 之前的所有版本。当实例管理员对某个组锁定 Duo 可用性时，拥有该组所有者权限的已认证用户仍可重新启用面向第三方服务的 AI 驱动数据外传功能，影响该组及其所有子项目。此问题源于管理员锁定强制执行控制的粒度不足。

CVSS 2.7 · Low
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I. Basic Information for CVE-2026-103515

Vulnerability Information
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Vulnerability Title
Incorrect Authorization in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab EE affecting all versions from 19.2 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when an instance administrator locked a group's Duo availability, an authenticated user with group Owner permissions could have re-enabled AI-backed data egress to a third-party service for that group and its descendant projects, due to insufficient granularity of the admin-lock enforcement controls.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 19.2 ~ 19.3.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-103515

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III. Intelligence Information for CVE-2026-103515

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Vendor Pages for CVE-2026-103515 (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-2026-112378 4.3 MEDIUM Use of Less Trusted Source 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

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-103515

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