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CVE-2026-27957— Coolify: Authenticated RCE via command injection in CA certificate management feature

Quick assessment

Affected
coollabsio coolify
Exploitation
Public or AI PoC available; prioritize validation
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之前版本存在命令注入漏洞，该漏洞源于CA Certificate管理功能存在命令注入漏洞，允许任何经过身份验证的用户在托管服务器主机上以配置的SSH用户身份执行任意命令。

CVSS 8.8 · High EPSS 0.66% · P49

Affected Version Matrix 1

VendorProduct Version RangeStatus
coollabsio coolify < 4.0.0-beta.464 affected
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I. Basic Information for CVE-2026-27957

Vulnerability Information
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Vulnerability Title
Coolify: Authenticated RCE via command injection in CA certificate management feature
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, an authenticated command injection vulnerability in the CA Certificate management feature allows any authenticated user to execute arbitrary commands as the configured SSH user on the managed server host. As the SSH user typically would have to either be root or part of the docker group for Coolify to function as intended, this provides complete compromise of the managed server and associated docker containers. 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:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
CoolLabs Coolify 命令注入漏洞
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之前版本存在命令注入漏洞，该漏洞源于CA Certificate管理功能存在命令注入漏洞，允许任何经过身份验证的用户在托管服务器主机上以配置的SSH用户身份执行任意命令。
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-2026-27957

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7653 chars
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III. Intelligence Information for CVE-2026-27957

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Vendor Advisories for CVE-2026-27957 (1)

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

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
CVE-2026-27956 4.3 MEDIUM Coolify: Cross-team application domain enumeration via domains_by_server endpoint

IV. Related Vulnerabilities

Same product: coolify
Same vendor: coollabsio
Same weakness: CWE-78

V. Comments for CVE-2026-27957

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