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.
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History
Fri, 26 Jun 2026 17:30:00 +0000
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ssvc
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Fri, 26 Jun 2026 16:45:00 +0000
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| Description | 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. | |
| Title | Dokku: Arbitrary File Write via Tar Symlink Traversal in git:from-archive and certs:add | |
| Weaknesses | CWE-59 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-26T16:50:07.854Z
Reserved: 2026-05-12T01:48:40.451Z
Link: CVE-2026-45405
Updated: 2026-06-26T16:49:46.208Z
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OpenCVE Enrichment
Updated: 2026-06-26T17:30:05Z
Weaknesses