Arbitrary file upload in Coollabsio Coolify

CVE-2026-42145

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.003 (16.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-42145?
CVE-2026-42145 is a low-severity vulnerability in Coollabsio Coolify, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 3.1/10. Published 2026-07-07.
How severe is CVE-2026-42145?
Low severity. CVSS v3 base score is 3.1 out of 10.