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CVE-2026-27956— Coolify: Cross-team application domain enumeration via domains_by_server endpoint

Quick assessment

Affected
coollabsio coolify
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

coolLabs Coolify是coolLabs团队开源的一个开源和自托管的 Heroku/Netlify/Vercel 替代品。 CoolLabs Coolify 4.0.0-beta.464之前版本存在授权问题漏洞，该漏洞源于 在提供可选的uuid查询参数时绕过团队范围限制，可能导致任何经过身份验证的API用户枚举其他团队的应用程序域名（FQDN）。

CVSS 4.3 · Medium EPSS 0.29% · P20

Affected Version Matrix 1

VendorProduct Version RangeStatus
coollabsio coolify < 4.0.0-beta.464 affected
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I. Basic Information for CVE-2026-27956

Vulnerability Information
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Vulnerability Title
Coolify: Cross-team application domain enumeration via domains_by_server endpoint
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
CoolLabs Coolify 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
coolLabs Coolify是coolLabs团队开源的一个开源和自托管的 Heroku/Netlify/Vercel 替代品。 CoolLabs Coolify 4.0.0-beta.464之前版本存在授权问题漏洞，该漏洞源于`GET /api/v1/servers/{server_uuid}/domains?uuid={app_uuid}`在提供可选的uuid查询参数时绕过团队范围限制，可能导致任何经过身份验证的API用户枚举其他团队的应用程序域名（FQDN）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
coollabsio coolify < 4.0.0-beta.464 -

II. Public POCs for CVE-2026-27956

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III. Intelligence Information for CVE-2026-27956

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Vendor Advisories for CVE-2026-27956 (1)

Same Patch Batch · coollabsio · 2026-06-30 · 6 CVEs total

CVE-2026-27957 8.8 HIGH Coolify: Authenticated RCE via command injection in CA certificate management feature
CVE-2026-27955 6.6 MEDIUM Coolify: Command Injection via Single-Quote Breakout in `executeInDocker()`
CVE-2026-27883 5.0 MEDIUM Coolify: IDOR in Deployment API - Cross-Team Deployment Information Disclosure
CVE-2026-27881 5.0 MEDIUM Coolify: Cross-team deployment information disclosure via GET /api/v1/deployments/{uuid} (
CVE-2026-27882 4.8 MEDIUM Coolify: Timing Attack in GitLab Webhook Token Validation

IV. Related Vulnerabilities

Same product: coolify
Same vendor: coollabsio
Same weakness: CWE-639

V. Comments for CVE-2026-27956

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