RCE in Dokku
CVE-2026-54636
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 limit…
Vulnerability class: Command Injection (OS Command Injection)
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Dokku — versions < 0.38.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2026-54636?
- CVE-2026-54636 is a critical-severity vulnerability in Dokku, classified under OS Command Injection. CVSS score: 9.0/10. Published 2026-06-26.
- How severe is CVE-2026-54636?
- Critical severity. CVSS v3 base score is 9.0 out of 10.