CVE-2026-42145 Coolify: File Upload Without Type or Size Validation in Database Backup Restore

Low 3.1 Published Updated

Authenticated users can upload oversized or unexpected files during database backup restore, potentially causing service availability issues.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-42145?

CVE-2026-42145 is a low-severity vulnerability in coollabsio coolify, published on 7 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, the file upload endpoint (app/Http/Controllers/UploadController.php) for database backup restore uploads did not enforce file type or size validation, allowing an authenticated user to upload unexpected or oversized files that could affect service availability. This issue is fixed in version 4.0.0-beta.474.

Weakness: CWE-770, CWE-434

Which versions are affected by CVE-2026-42145?

How do I fix CVE-2026-42145?

No fix has been published for CVE-2026-42145 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-42145 being exploited?

There is no known exploitation of CVE-2026-42145 in the wild and no public exploit code.

Sources

Also known as GHSA-66gv-g2w9-6wxp.

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