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
- Coollabsio Coolify — versions < 4.0.0-beta.474
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
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.