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CVE-2026-19478— Improper Control of Generation of Code ('Code Injection') in GitLab

Quick assessment

Affected
GitLab GitLab
Exploitation
Public or AI PoC available; prioritize validation
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公司开源的一款源代码管理平台。 GitLab 18.2至18.11.11之前版本、19.0至19.0.8之前版本、19.1至19.1.6之前版本和19.2至19.2.4之前版本存在代码注入漏洞，该漏洞源于GraphQL指令问题，可能导致未经身份验证的用户远程修改或删除公共项目和用户数据。

CVSS 9.4 · Critical EPSS 1.94% · P78

Public Exploits 1

Nuclei · 1 CVE-2026-19478.yaml [template]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
GitLab GitLab 18.2< 18.11.11 affected
19.0< 19.0.8 affected
19.1< 19.1.6 affected
19.2< 19.2.4 affected
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I. Basic Information for CVE-2026-19478

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Improper Control of Generation of Code ('Code Injection') in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could allow an unauthenticated user to remotely modify or delete public projects and user data via a GraphQL directive.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司开源的一款源代码管理平台。 GitLab 18.2至18.11.11之前版本、19.0至19.0.8之前版本、19.1至19.1.6之前版本和19.2至19.2.4之前版本存在代码注入漏洞，该漏洞源于GraphQL指令问题，可能导致未经身份验证的用户远程修改或删除公共项目和用户数据。
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 18.2 ~ 18.11.11 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19478

# POC Description Source Link Shenlong Link
1 GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could allow an unauthenticated user to remotely modify or delete public projects and user data via a GraphQL directive. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-19478.yaml POC Details
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III. Intelligence Information for CVE-2026-19478

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Patches & Fixes for CVE-2026-19478 (1)

Other References for CVE-2026-19478 (1)

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-94

V. Comments for CVE-2026-19478

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