CVE-2026-27957: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in coollabsio coolify
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.
AI Analysis
Technical Summary
CVE-2026-27957 is an authenticated OS command injection vulnerability (CWE-78) in Coolify's CA Certificate management feature affecting versions before 4.0.0-beta.464. An authenticated user can inject arbitrary OS commands executed as the SSH user configured for Coolify management. Given that this SSH user usually has root or docker group privileges, successful exploitation results in complete control over the managed server and associated docker containers. The vulnerability is resolved in version 4.0.0-beta.464.
Potential Impact
An authenticated attacker can execute arbitrary commands with the privileges of the configured SSH user, which is typically root or a member of the docker group. This leads to full compromise of the managed server and all docker containers managed by Coolify, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade to Coolify version 4.0.0-beta.464 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Until upgrade, restrict authenticated user access to trusted personnel only.
CVE-2026-27957: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in coollabsio coolify
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.
CVSS v3.1
Score 8.8high
Affected software
pkg:github/coollabsio/coolifyRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-27957 is an authenticated OS command injection vulnerability (CWE-78) in Coolify's CA Certificate management feature affecting versions before 4.0.0-beta.464. An authenticated user can inject arbitrary OS commands executed as the SSH user configured for Coolify management. Given that this SSH user usually has root or docker group privileges, successful exploitation results in complete control over the managed server and associated docker containers. The vulnerability is resolved in version 4.0.0-beta.464.
Potential Impact
An authenticated attacker can execute arbitrary commands with the privileges of the configured SSH user, which is typically root or a member of the docker group. This leads to full compromise of the managed server and all docker containers managed by Coolify, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade to Coolify version 4.0.0-beta.464 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Until upgrade, restrict authenticated user access to trusted personnel only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-02-25T03:24:57.792Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a43db7c27e9c79719f8cbc8
Added to database: 06/30/2026, 15:06:36 UTC
Last enriched: 06/30/2026, 15:21:42 UTC
Last updated: 06/30/2026, 15:51:47 UTC
Views: 3
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