What is CVE-2026-34037?

CVE-2026-34037 is a critical-severity vulnerability in Coollabsio Coolify, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.9/10. Published 2026-07-07.

How severe is CVE-2026-34037?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Auth bypass in Coollabsio Coolify

CVE-2026-34037

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, the cloneTo() Livewire action in ResourceOperations.php authorizes the source resource but resolves destination resources with unscoped Eloquent lookups, allowing an authenticated user to clone resources into destinations owned by other teams and access cross-tenant resources. This issue is fixed in version 4.0.0-beta.464.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.003 (22.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L.

Affected products

Coollabsio Coolify — versions < 4.0.0-beta.464

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34037?: CVE-2026-34037 is a critical-severity vulnerability in Coollabsio Coolify, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.9/10. Published 2026-07-07.
How severe is CVE-2026-34037?: Critical severity. CVSS v3 base score is 9.9 out of 10.