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Vulnerability record · CVE-2026-54636 · published 26 June 2026

CVE-2026-54636: Dokku os command injection vulnerability

Dokku · Dokku

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.

9.9 CVSS 3.1 Critical EPSS 0.53% · top 57.5% CWE-78 · OS command injection
9.9CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
29 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/dokku/dokku/pull/8672 Issue TrackingPatch
https://github.com/dokku/dokku/security/advisories/GHSA-72vm-7pc2-x95w Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-54636), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.