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9.9
CVE-2026-54636: Dokku Docker Container Escalation via Malicious App Config
CVE-2026-54636
Summary
A configuration mistake in Dokku's app settings can allow an attacker to run commands on the server as the Dokku user. This could lead to unauthorized access and potentially allow the attacker to take control of the server. Update to the latest version of Dokku to fix this issue.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| dokku | dokku |
< 0.38.7 cpe:2.3:a:dokku:dokku:*:*:*:*:-:*:*:* |
Original title
Dokku is a docker-powered PaaS. Prior to 0.38.7, the cron plugin utilizes commands in the app.json file to manage system cron running as the Dokku user. An app.json cron command utilizing special s...
Original description
Dokku is a docker-powered PaaS. Prior to 0.38.7, the cron plugin utilizes commands in the app.json file to manage system cron running as the Dokku user. An app.json cron command utilizing special shell characters - including, but not limited to, > or ; - can break out of the Docker container and execute commands on the host as the Dokku user. This vulnerability is fixed in 0.38.7.
nvd CVSS3.1
9.0
Vulnerability type
CWE-78
OS Command Injection
Published: 26 Jun 2026 · Updated: 20 Jul 2026 · First seen: 26 Jun 2026