by Kastro
Paper/Archive/CVE-2026-45406

CVE-2026-45406

dokku dokku — Dokku: Host RCE via Maliciously Named OpenResty Include Files Injected Through eval

EPSS 0.5%CVSS 9.0
critical.is priorityof 100
36
CVSS 9.0 (CNA)9.0 / 10 × 3027.0Not in CISA KEV+300.0EPSS percentile 44.8.448 × 209.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
dokku< 0.38.2–CNA

Scores by source

GitHub_M (CNA)9.0CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/dokku/dokku/security/advisories/GHSA-ggqh-98fj-8mg9refgithub.com/dokku/dokku/pull/8588