Auth bypass in Coollabs Coolify
CVE-2025-64423
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 see and use invitation links sent to an administrator. When they use the link before the legitimate recipient does, they are able to log in as an administrator, meaning they have successfully escalated their privileges. As of time of publication, it is unclear if a patch is available.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (25.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Coollabs Coolify — versions 4.0.0
- Coollabsio Coolify — versions <= 4.0.0-beta.434
Weakness classification (CWE)
References
- github.com/coollabsio/coolify/security/advisories/GHSA-4fqm-797g-7m6j (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-64423?
- CVE-2025-64423 is a high-severity vulnerability in Coollabs Coolify, classified under Improper Authentication. CVSS score: 8.8/10. Published 2026-01-05.
- How severe is CVE-2025-64423?
- High severity. CVSS v3 base score is 8.8 out of 10.