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9.4
CRITICAL CVSS 3.1
CVE-2026-19478
Improper Control of Generation of Code ('Code Injection') in GitLab
Overview
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.

Details
INFO

Published Date :

Aug. 17, 2026, 8:16 p.m.

Last Modified :

Sept. 2, 2026, 12:43 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Impact
Affected Products

The following products are affected by CVE-2026-19478 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gitlab gitlab
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 CRITICAL ceab7361-8a18-47b1-92ba-4d7d25f6715a
CVSS 3.1 CRITICAL [email protected]
CVSS 3.1 CRITICAL MITRE-CVE
CVSS 3.1 CRITICAL [email protected]
Solution
Update GitLab to a patched version to fix unauthorized data modification/deletion vulnerability.
  • Update GitLab to version 18.11.11 or later.
  • Update GitLab to version 19.0.8 or later.
  • Update GitLab to version 19.1.6 or later.
  • Update GitLab to version 19.2.4 or later.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-19478.

URL Resource
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-4-released/ Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/611377 Not Applicable
https://hackerone.com/reports/3926431 Permissions Required
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-19478 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-19478 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-19478 vulnerability anywhere in the article.

  • The Cyber Express
Microsoft Reverses Its Own ‘Exploitation’ Warning on Entra ID Flaw CVE-2026-69836

Microsoft disclosed and fixed a maximum-severity remote code execution vulnerability in Entra ID, its cloud identity platform, on August 20, then quietly reversed the advisory’s exploitation status a ... Read more

Published Date: Aug 24, 2026 (2 weeks ago)
  • The Cyber Express
Microsoft Says CVSS 10.0 Entra ID Code Execution Flaw Was Exploited Before Server-Side Fix

Microsoft disclosed on Thursday that a maximum-severity remote code execution vulnerability in Entra ID, the identity service underpinning Microsoft 365, Azure and Dynamics 365, was exploited in the w ... Read more

Published Date: Aug 21, 2026 (2 weeks, 2 days ago)
  • The Cyber Express
The Cyber Express Weekly Roundup: Tax Data Breach, AI Security Risks, and Critical GitLab Flaw

This weekly roundup highlights a broad range of cybersecurity threats affecting government agencies, businesses, enterprise AI systems, and software platforms. From a major French tax authority breach ... Read more

Published Date: Aug 21, 2026 (2 weeks, 2 days ago)
  • The Hacker News
GitLab CVE-2026-19478 Comes Under Active Exploitation Within Days of Disclosure

A newly disclosed security flaw in GitLab has come under active exploitation within days of public disclosure, according to watchTowr. The vulnerability in question is CVE-2026-19478 (CVSS score: 9.4) ... Read more

Published Date: Aug 21, 2026 (2 weeks, 3 days ago)
  • security.nl
Kritiek GitLab-lek twee dagen na uitkomen update misbruikt bij aanvallen

Een kritieke kwetsbaarheid in GitLab, de populaire online DevOps-tool voor het ontwikkelen van software, wordt twee dagen na het uitkomen van de beveiligingsupdate al misbruikt bij aanvallen. Dat laat ... Read more

Published Date: Aug 20, 2026 (2 weeks, 4 days ago)
  • The Cyber Express
Critical GitLab Flaw Lets Hackers Alter or Delete Public Projects

GitLab has patched two security flaws, including CVE-2026-19478, a critical code injection vulnerability that could allow unauthenticated attackers to remotely modify or delete public projects and use ... Read more

Published Date: Aug 19, 2026 (2 weeks, 5 days ago)
  • TheCyberThrone
GitLab 19.2.4: Critical GraphQL Vulnerability patched

GitLab has released an ad-hoc critical  security patch for its Community Edition (CE) and Enterprise Edition (EE), addressing a critical GraphQL-related vulnerability that could allow an unauthenticat ... Read more

Published Date: Aug 19, 2026 (2 weeks, 5 days ago)
  • The Hacker News
Critical GitLab GraphQL Flaw Could Let Unauthenticated Attackers Delete Public Projects

GitLab has released security updates to address a critical vulnerability impacting its Community Edition (CE) and Enterprise Edition (EE) software that, under certain conditions, could allow an unauth ... Read more

Published Date: Aug 17, 2026 (2 weeks, 6 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-19478 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Sep. 02, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
    Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 18.2.0 up to (excluding) 18.11.11 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 18.2.0 up to (excluding) 18.11.11 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 19.0.0 up to (excluding) 19.0.8 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 19.0.0 up to (excluding) 19.0.8 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 19.1.0 up to (excluding) 19.1.6 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 19.1.0 up to (excluding) 19.1.6 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 19.2.0 up to (excluding) 19.2.4 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 19.2.0 up to (excluding) 19.2.4
    Added Reference Type GitLab Inc.: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-4-released/ Types: Vendor Advisory
    Added Reference Type GitLab Inc.: https://gitlab.com/gitlab-org/gitlab/-/work_items/611377 Types: Not Applicable
    Added Reference Type GitLab Inc.: https://hackerone.com/reports/3926431 Types: Permissions Required
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 17, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-19478', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-17T20:43:52.387073Z'}
  • New CVE Received by [email protected]

    Aug. 17, 2026

    Action Type Old Value New Value
    Added Affected [{'cpes': ['cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*'], 'repo': 'git://[email protected]:gitlab-org/gitlab.git', 'vendor': 'GitLab', 'product': 'GitLab', 'versions': [{'status': 'affected', 'version': '18.2', 'lessThan': '18.11.11', 'versionType': 'semver'}, {'status': 'affected', 'version': '19.0', 'lessThan': '19.0.8', 'versionType': 'semver'}, {'status': 'affected', 'version': '19.1', 'lessThan': '19.1.6', 'versionType': 'semver'}, {'status': 'affected', 'version': '19.2', 'lessThan': '19.2.4', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}]
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
    Added CWE CWE-94
    Added Reference https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-4-released/
    Added Reference https://gitlab.com/gitlab-org/gitlab/-/work_items/611377
    Added Reference https://hackerone.com/reports/3926431
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 9.4
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact