Coolify before 4.2.0 Remote Code Execution via Environment Variable Key
Priority MEDIUM 41CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00845 58th percentileScored 2026-11-07
Fix Fixed coolify (coollabsio): 4.2.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| coollabsio | coolify | before 4.2.0 | 4.2.0 | Patch available | CNA |
- coolify Vendorcoollabsio Affected before 4.2.0 Fixed in 4.2.0 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:coollabs:coolify:*:*:*:*:*:*:*:* | — | — | coollabsio |
- cpe:2.3:a:coollabs:coolify:*:*:*:*:*:*:*:* Versions — — ·coollabsio
Remediation
- Fix · CNA coolify (coollabsio) Fixed in 4.2.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-84694
- 2026-10-03 Alias added: GHSA-xf4v-vq77-2rgv
References
More coollabsio vulnerabilities
- TI-2025-40716 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in File Storage Directory Mount Path CVSS 4.0CRITICAL 9.4
- TI-2025-40715 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Dynamic Proxy Configuration Filename CVSS 4.0CRITICAL 9.4
- TI-2025-40714 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in PostgreSQL Init Script Filename CVSS 4.0CRITICAL 9.4
- TI-2025-40713 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Database Import CVSS 4.0CRITICAL 9.4
- TI-2025-40712 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Database Backup CVSS 3.1CRITICAL 10.0
- TI-2025-16498 Coolify Vulnerable to Private Key Enumeration on Onboarding resulting in Remote Command Execution (RCE) CVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-84694 · CVE Program
- CVE-2026-84694 · NVD
- FIRST EPSS
- GHSA-xf4v-vq77-2rgv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences