Vulnerability Description
Dokku is a docker-powered PaaS. Prior to 0.38.2, the openresty-vhosts plugin copies files from an app's openresty/http-includes/ git repository directory to the host and then interpolates their filenames, unescaped, into a single-quoted shell string that is later parsed by eval. A filename containing a single quote breaks the quoting and allows command substitution to execute arbitrary commands on the host as the dokku user during the app's next deploy. This vulnerability is fixed in 0.38.2.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dokku | Dokku | < 0.38.2 |
Related Weaknesses (CWE)
References
- https://github.com/dokku/dokku/pull/8588Issue TrackingPatch
- https://github.com/dokku/dokku/security/advisories/GHSA-ggqh-98fj-8mg9Vendor Advisory
FAQ
What is CVE-2026-45406?
CVE-2026-45406 is a vulnerability with a CVSS score of 9.0 (CRITICAL). Dokku is a docker-powered PaaS. Prior to 0.38.2, the openresty-vhosts plugin copies files from an app's openresty/http-includes/ git repository directory to the host and then interpolates their filena...
How severe is CVE-2026-45406?
CVE-2026-45406 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-45406?
Check the references section above for vendor advisories and patch information. Affected products include: Dokku Dokku.