Description
Dokku is a docker-powered PaaS. Prior to 0.38.2, the app name validation regex (^[a-z0-9][^/:_A-Z]*$) permits shell metacharacters. When an authenticated user pushes to a git remote with a crafted app name, the name is embedded unquoted into a bash pre-receive hook script via an unquoted heredoc (<<EOF instead of <<'EOF') in fn-git-create-hook() at plugins/git/internal-functions:378. On git push, bash interprets the semicolon as a command separator, executing arbitrary commands as the dokku user. This vulnerability is fixed in 0.38.2.
Severity (CVSS)
| Base score | 9 |
|---|---|
| Severity | Critical |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| Provided by | CNA |
Weaknesses
- CWE-78 — CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products
| Vendor | Product | Versions |
|---|---|---|
| dokku | dokku | < 0.38.2 |
References
- https://github.com/dokku/dokku/security/advisories/GHSA-9x85-7gxq-fcr3 (x_refsource_CONFIRM)
- https://github.com/dokku/dokku/pull/8590 (x_refsource_MISC)
Generated from the official CVE List on 27 Jun 2026 07:02 UTC.