Coolify: Authenticated Host RCE

Answer in brief

CVE-2026-34597 records a High severity (CVSS 8.8) vulnerability in Coolify: Authenticated Host RCE. 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 Jun 29, 2026Updated Jun 30, 2026Source checked Sep 19, 2026First seen by HOL Jun 29, 2026Material review Jun 30, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.8. 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	< 4.0.0-beta.470	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for coollabsio/coolify.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Jun 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Jun 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 29, 2026

Sources and claim methodology

GitHub security advisorygithub.com

Upstream source description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.470, a critical Authenticated Host Remote Code Execution (RCE) vulnerability was discovered in Coolify. The flaw resides in the handling of user-defined build parameters for the Nixpacks build pack. Specifically, the install_command provided by a user is directly concatenated into a shell command string that is executed on the deployment host during the building phase. An attacker can leverage this to escape the intended build context and execute arbitrary commands with host-level privileges. This vulnerability is fixed in 4.0.0-beta.470.

Quoted source text, attributed separately from HOL analysis.