Is CVE-2026-42147 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-42147?

CVE-2026-42147 has a CVSS v3 severity of MEDIUM (4.9).

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CVE-2026-42147

Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, S3 storage endpoint validation only checks URL format and testConnection() sends a server-side request to the configured endpoint, allowing an authenticated user with storage management permissions to make Coolify request internal or metadata-service URLs. This issue is fixed in version 4.0.0-beta.474.