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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
coollabsio coolify unaffected
Version Status Constraints
0 affected < 4.2.0
4.2.0 unaffected —

No data.

No data.

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Project Subscriptions

Vendors Products
Coollabs Subscribe
Coolify Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/coollabsio/coolify cve-icon cve-icon
https://github.com/coollabsio/coolify/blob/v4.1.2/app/Policies/ApplicationPolicy.php cve-icon cve-icon
https://github.com/coollabsio/coolify/blob/v4.1.2/app/Support/ValidationPatterns.php cve-icon cve-icon
https://github.com/coollabsio/coolify/commit/b50839d4515b115b7ded5db609471440249995da cve-icon cve-icon
https://github.com/coollabsio/coolify/releases/tag/v4.2.0 cve-icon cve-icon
https://www.vulncheck.com/advisories/coolify-before-4.2.0-remote-code-execution-via-environment-variable-key cve-icon cve-icon
History

Wed, 02 Sep 2026 01:15:00 +0000

Type Values Removed Values Added
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.
Title Coolify before 4.2.0 Remote Code Execution via Environment Variable Key
First Time appeared Coollabs
Coollabs coolify
Weaknesses CWE-78
CPEs cpe:2.3:a:coollabs:coolify:*:*:*:*:*:*:*:*
Vendors & Products Coollabs
Coollabs coolify
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-02T00:37:50.990Z

Reserved: 2026-09-01T23:24:14.522Z

Link: CVE-2026-84694

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-02T01:17:24.243

Modified: 2026-09-02T01:17:24.243

Link: CVE-2026-84694

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-02T04:00:09Z

Weaknesses