CVE-2026-45408

critical · 9

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.

CVSS

0.4%

EPSS (exploit prob.)

36th

EPSS percentile

2026-06-26

Published

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

Weaknesses

CWE-78

Affected products

Vendor	Product	Affected versions
dokku	dokku	< 0.38.2

Check a specific version with /api/v1/cve/match.

References

https://github.com/dokku/dokku/pull/8590
https://github.com/dokku/dokku/security/advisories/GHSA-9x85-7gxq-fcr3

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-45408