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CVE-2025-64423

Coollabs Coolify authentication bypass

8.8 HIGHPublic exploitEPSS 0.35%
  1. Published5 Jan 2026

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 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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Coollabs Coolify< 4.0.0 · 4.0.0

Remediation

Fixed in
Coollabs Coolify≥ 4.0.0

References

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Frequently asked

Is CVE-2025-64423 being actively exploited?

CVE-2025-64423 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.35%.

How severe is CVE-2025-64423?

CVE-2025-64423 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.35% probability of exploitation.

Which products are affected by CVE-2025-64423?

Affected products include Coollabs Coolify.

How do I fix CVE-2025-64423?

Upgrade affected software to a fixed version, for example Coollabs Coolify 4.0.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-64423 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.