Coolify before 4.2.0 Remote Code Execution via Environment Variable Key (CVE-2026-84694) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-84694

Coolify before 4.2.0 Remote Code Execution via Environment Variable Key

Answer in brief

CVE-2026-84694 records a Unknown severity vulnerability in Coolify before 4.2.0 Remote Code Execution via Environment Variable Key. The current sources do not mark it as known exploited. The current feed maps coollabsio/coolify (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 2, 2026Updated Sep 2, 2026Source checked Sep 2, 2026First seen by HOL Sep 2, 2026Material review Sep 2, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps coollabsio/coolify (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
coollabsio/coolifygeneric	>=0 <4.2.0	4.2.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for coollabsio/coolify.
Review the reported fix. Update coollabsio/coolify to 4.2.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 2, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.