CVE-2026-15831— Generation of Incorrect Security Tokens in GitLab
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I. Basic Information for CVE-2026-15831
Vulnerability Information
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Vulnerability Title
Generation of Incorrect Security Tokens in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.3 and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to bypass administrator-configured tool governance policies due to improper authorization enforcement during token generation.
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
CWE-1270
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司开源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 EE 19.1.3版本之前的19.1.x版本和19.2.1版本之前的19.2.x版本存在授权问题漏洞，该漏洞源于令牌生成过程中授权执行不当，可能导致经过身份验证的用户绕过管理员配置的工具治理策略。
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
II. Public POCs for CVE-2026-15831
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Patches & Fixes for CVE-2026-15831 (2)
Same Patch Batch · GitLab · 2026-07-29 · 13 CVEs total
| CVE-2026-6267 | 8.5 HIGH | Insertion of Sensitive Information Into Sent Data in GitLab |
| CVE-2026-12436 | 8.4 HIGH | Improperly Controlled Modification of Dynamically-Determined Object Attributes in GitLab |
| CVE-2026-15975 | 7.5 HIGH | Allocation of Resources Without Limits or Throttling in GitLab |
| CVE-2026-13113 | 6.5 MEDIUM | Time-of-check Time-of-use (TOCTOU) Race Condition in GitLab |
| CVE-2026-16553 | 5.4 MEDIUM | Insufficiently Protected Credentials in GitLab |
| CVE-2026-6336 | 5.3 MEDIUM | Incorrect Authorization in GitLab |
| CVE-2026-14341 | 4.9 MEDIUM | Missing Authorization in GitLab |
| CVE-2026-3093 | 4.7 MEDIUM | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi |
| CVE-2026-4672 | 4.3 MEDIUM | Missing Authorization in GitLab |
| CVE-2026-14351 | 4.3 MEDIUM | Exposure of Sensitive Information Through Metadata in GitLab |
| CVE-2026-15077 | 4.3 MEDIUM | Improper Neutralization of Input Used for LLM Prompting in GitLab |
| CVE-2025-14562 | 3.1 LOW | Incorrect Authorization in GitLab |
IV. Related Vulnerabilities
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