CVE-2026-27956

Coolify: Cross-team application domain enumeration via domains_by_server endpoint

State: Published
Severity: 4.3 Medium
Published: Jun 30, 2026
Updated: Jun 30, 2026
Reserved: Feb 25, 2026

Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, `GET /api/v1/servers/{server_uuid}/domains?uuid={app_uuid}` bypasses team scoping when the optional uuid query parameter is provided. Any authenticated API user can enumerate domain names (FQDNs) of applications belonging to other teams. This vulnerability is fixed in 4.0.0-beta.464.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
coolifycoollabsio	< 4.0.0-beta.464Affected

References

https://github.com/coollabsio/coolify/security/advisories/GHSA-9x6p-29p3-h466

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