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

Severity: low (CVSS 3.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-07 · updated 2026-10-25
Weakness: CWE-434

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.

Affected products

coollabsio coolify: before 4.0.0-beta.474

References

https://github.com/coollabsio/coolify/commit/e6a6446daeace2999fb77888a611a3271812911f
https://github.com/coollabsio/coolify/pull/9667
https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.474
https://github.com/coollabsio/coolify/security/advisories/GHSA-66gv-g2w9-6wxp

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