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CVE-2026-45405

⛔ critical
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Summary

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

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.

CVSS Score
9.0
Critical
EPSS Score
-
Published Date
2026-06-26
First Seen: 2026-06-27
📊 Relative Risk Intelligence

This CVE is High Risk - more severe than 87.7% of all 330,193 vulnerabilities in our database.

#40,600
Top 25% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jun 26, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Total
Complete system compromise possible
SSVC data provided by CISA
Last Modified 2026-06-26
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CWE IDs (Weakness Types)
CWE-59

📦 Affected Products 1

Vendor Product Status Affected Versions
dokku dokku Affected
< 0.38.2

🔗 References 2

https://github.com/dokku/dokku/pull/8591
Issue Tracking Patch
https://github.com/dokku/dokku/security/advisories/G...
Vendor Advisory

🔗 Related CVEs 4

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-45406 ⛔ critical 9.0 - Dokku is a docker-powered PaaS. Prior to 0.38.2, the openresty-vhosts plugin copies files from an app's openresty/http-i... 2026-06-26
CVE-2026-45407 🔶 medium 5.0 - Dokku is a docker-powered PaaS. Prior to 0.38.2, the git:auth command creates $DOKKU_ROOT/.netrc using bash's touch comm... 2026-06-26
CVE-2026-45408 ⛔ critical 9.0 - Dokku is a docker-powered PaaS. Prior to 0.38.2, the app name validation regex (^[a-z0-9][^/:_A-Z]*$) permits shell meta... 2026-06-26
CVE-2026-54636 ⛔ critical 9.0 - Dokku is a docker-powered PaaS. Prior to 0.38.7, the cron plugin utilizes commands in the app.json file to manage system... 2026-06-26
These CVEs affect the same products