What is CVE-2025-64421?

CVE-2025-64421 is a high-severity vulnerability in Coollabs Coolify, classified under Incorrect Authorization. CVSS score: 8.0/10. Published 2026-01-05.

How severe is CVE-2025-64421?

High severity. CVSS v3 base score is 8.0 out of 10.

Auth bypass in Coollabs Coolify

CVE-2025-64421

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 ap…

Vulnerability class: Broken Access Control

EPSS: 0.003 (16.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Coollabs Coolify — versions 4.0.0
Coollabsio Coolify — versions <= 4.0.0-beta.434

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Exploit, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-64421?: CVE-2025-64421 is a high-severity vulnerability in Coollabs Coolify, classified under Incorrect Authorization. CVSS score: 8.0/10. Published 2026-01-05.
How severe is CVE-2025-64421?: High severity. CVSS v3 base score is 8.0 out of 10.