CVE-2025-64421

High

Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. In Coolify versions up to and including v4.0.0-beta.434, a low privileged user (member) can invite a high privileged user. At first, the application will throw an error, but if the attacker clicks the invite button a second time, it actually works. This way, a low privileged user can invite themselves as an administrator to the Coolify instance. After the high privileged user is invited, the attacker can initiate a password reset and log in with the new admin. As of time of publication, it is unclear if a patch is available.

SeverityHigh
CVSS8.0
Exploit probability—
ProductCoollabs Coolify
PublishedJan 5, 2026
First seenJan 5, 2026

How to fix

Update
  • coollabs coolify4.0.0 or later

Affected products

ProductAffected versionsFixed in
coollabs coolifyv < 4.0.0, 4.0.04.0.0

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