CVE-2026-84694: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in coollabsio coolify
Description
Coolify before 4.2.0 fails to properly escape environment variable key names in Docker commands executed over SSH on managed servers. Authenticated attackers can inject shell metacharacters into environment variable keys to execute arbitrary commands on the server host outside containers.
CVSS v4.0
Score 8.7high
Affected software
coollabsio
coolify
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Coolify before version 4.2.0 improperly neutralizes special elements in environment variable key names used in Docker commands executed over SSH. This failure to escape shell metacharacters allows authenticated users to perform OS command injection, executing arbitrary commands on the host system outside of container boundaries.
Potential Impact
An authenticated attacker can exploit this vulnerability to execute arbitrary commands on the server host, potentially leading to full system compromise or unauthorized actions outside the container environment. This elevates the risk of data breach, system manipulation, or disruption of services.
Mitigation Recommendations
No official patch or remediation level is currently confirmed. Users should upgrade to version 4.2.0 or later once available, as this version is indicated as the fixed release. Until a patch is confirmed, restrict access to trusted users only and monitor for suspicious activity related to environment variable manipulation in Docker commands.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-01T23:24:14.522Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a977a61acd9273b49923c2a
Added to database: 09/02/2026, 01:22:41 UTC
Last enriched: 09/07/2026, 14:03:57 UTC
Last updated: 10/15/2026, 06:48:19 UTC
Views: 70
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