What is CVE-2026-27883?

CVE-2026-27883 is a medium-severity vulnerability in Coollabsio Coolify, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.0/10. Published 2026-06-30.

How severe is CVE-2026-27883?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Auth bypass in Coollabsio Coolify

CVE-2026-27883

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, the `GET /api/v1/deployments/{uuid}` endpoint allows any authenticated user to access deployment details belonging…

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

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)

Frequently asked questions

What is CVE-2026-27883?: CVE-2026-27883 is a medium-severity vulnerability in Coollabsio Coolify, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.0/10. Published 2026-06-30.
How severe is CVE-2026-27883?: Medium severity. CVSS v3 base score is 5.0 out of 10.