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CVE-2026-13319— Authorization Bypass Through User-Controlled Key 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 已修复影响 GitLab CE/EE 的一个安全漏洞。该漏洞存在于 15.10 至 19.3.5、19.4 至 19.4.2 以及 19.5 至 19.5.0 的所有版本中。由于在群组里程碑（group milestones）API 中缺少对用户提供的“项目筛选器”参数的授权检查，该漏洞可能允许已认证用户在不具备任何项目成员身份的情况下，读取实例中任意私有项目的里程碑元数据，包括标题、描述和完整的项目路径。

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-13319

Vulnerability Information
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Vulnerability Title
Authorization Bypass Through User-Controlled Key in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.10 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, could have allowed an authenticated to read milestone metadata, including titles, descriptions, and full project paths, from arbitrary private projects across the instance without any project membership, due to missing authorization checks on a user-supplied project filter parameter in the group milestones API.
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
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 15.10 ~ 19.3.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-13319

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III. Intelligence Information for CVE-2026-13319

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Patches & Fixes for CVE-2026-13319 (1)

Other References for CVE-2026-13319 (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-2026-105777 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
CVE-2026-103515 2.7 LOW Incorrect Authorization in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-639

V. Comments for CVE-2026-13319

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