PT-2026-52850 · Dokku · Dokku

Published 2026-06-26 · Updated 2026-06-26 · CVE-2026-45405

NVD

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Dokku is a docker-powered PaaS. Prior to 0.38.2, the git:from-archive and certs:add commands extract user-supplied tar/zip archives into temporary directories without sanitizing member paths or preventing symlink traversal. GNU tar creates symlinks during extraction and follows them for subsequent entries, allowing an attacker to write arbitrary files anywhere writable by the dokku user — including overwriting ~/.ssh/authorized keys to gain unrestricted shell access. This vulnerability is fixed in 0.38.2.

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2026-45405

Affected Products

Dokku

References · 3

• https://github.com/dokku/dokku/pull/8591 · Patch
• https://github.com/dokku/dokku/security/advisories/GHSA-j6qq-xg73-ghqg · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-45405 · Security Note