CVE-2026-100744
Received Received - Intake

Authorization Bypass in Coolify Application

Publication date: 2026-09-27

Last updated on: 2026-09-27

Assigner: VulDB

Description
A flaw has been found in coollabsio Coolify up to 4.1.2. The affected element is an unknown function of the file app/Http/Middleware/CanUpdateResource.php of the component Route-Level Middleware. Executing a manipulation can lead to missing authorization. The attack may be launched remotely. The exploit has been published and may be used. Upgrading to version 4.2.0 is sufficient to fix this issue. This patch is called 39ae16de4248075de8c08f3259114e064b20d52d. It is advisable to upgrade the affected component.

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Meta Information

Published
2026-09-27
Last Modified
2026-09-27
Generated
2026-09-27
AI Q&A
2026-09-27
EPSS Evaluated
N/A
NVD
CVE-2026-100744
EUVD
EUVD-2026-87817

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
coollabsio coolify to 4.1.2 (inc)
coollabsio coolify to 4.2.0 (exc)
coollabsio coolify 4.2.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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Executive Summary

This vulnerability is a missing authorization flaw in Coolify versions up to 4.1.2. It exists in the CanUpdateResource.php middleware where a manipulation could bypass authorization checks. The attack can be executed remotely without requiring user interaction. An exploit has been published, and upgrading to version 4.2.0 fixes the issue.

Detection Guidance

To detect this vulnerability, check if your Coolify instance is running a version prior to 4.2.0. Verify the installed version via the admin panel or by running commands like 'docker ps' or 'curl -s https://your-coolify-instance.com/api/version'. If the version is below 4.2.0, the system is vulnerable.

Impact Analysis

An attacker could remotely exploit this to perform unauthorized actions by manipulating the route-level middleware. This may lead to unauthorized access, data modification, or other unintended operations within the Coolify instance.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating compliance requirements for GDPR and HIPAA. It may result in unauthorized data exposure, integrity issues, or lack of audit trails due to improper authorization checks.

Mitigation Strategies

Upgrade Coolify to version 4.2.0 or later immediately. This can be done by pulling the latest Docker image or updating via the admin panel. After upgrading, restart the Coolify service to apply the patch. Ensure no unauthorized access has occurred during the vulnerable period.

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