CVE-2026-84694 json
Coolify before 4.2.0 Remote Code Execution via Environment Variable Key
published 2026-09-02 2 mo ago modified 2026-09-10 59 d ago also EUVD-2026-69785
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
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.
Patch / fix
- coollabsio coolify 4.2.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | 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 |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.7 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- coollabsio coolify
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
github.com
/coollabsio/coolify/commit/b50839d4515b115b7ded5db609471440249995da
patch
-
github.com
/coollabsio/coolify
product
-
github.com
/coollabsio/coolify/blob/v4.1.2/app/Support/ValidationPatterns.php
technical-description
-
github.com
/coollabsio/coolify/blob/v4.1.2/app/Policies/ApplicationPolicy.php
technical-description
-
github.com
/coollabsio/coolify/releases/tag/v4.2.0
release-notes
-
vulncheck.com
/advisories/coolify-before-4.2.0-remote-code-execution-via-environment-variable-key
third-party-advisory
Sources
- CVE List CVE-2026-84694
- NVD CVE-2026-84694
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.