Vulnerability · Published Jun 26, 2026 · Assigned by GitHub_M

CVE-2026-45406Dokku: Host RCE via Maliciously Named OpenResty Include Files Injected Through eval

Critical 9.0

In plain English

A critical-severity security flaw in dokku from dokku. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)9.0Critical

Exploit odds (30 days)0.5%top 55.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
dokku	dokku	< 0.38.2

Weakness: CWE-95 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

References

https://github.com/dokku/dokku/security/advisories/GHSA-ggqh-98fj-8mg9 x_refsource_CONFIRM
https://github.com/dokku/dokku/pull/8588 x_refsource_MISC