What’s Vulnerable › Vulnerabilities
CVE-2025-64422: Rate-limit bypass on login via X-Forwarded-Host header
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-01-05 · updated 2026-10-07
- Weakness: CWE-770
Description
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. In Coolify vstarting with version 4.0.0-beta.434, the /login endpoint advertises a rate limit of 5 requests but can be trivially bypassed by rotating the X-Forwarded-For header. This enables unlimited credential stuffing and brute-force attempts against user and admin accounts. As of time of publication, it is unclear if a patch is available.
Affected products
- coollabsio coolify: before 4.0.0; 4.0.0-beta100, 4.0.0-beta101, 4.0.0-beta102, 4.0.0-beta103, 4.0.0-beta104, 4.0.0-beta105 (+419) — fixed in 4.0.0
How to fix
Upgrade to a fixed version: coollabsio coolify 4.0.0. Check the vendor advisory for mitigations.
References
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