CVE-2026-44885
Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, Portainer's backup restore feature accepts a .tar.gz archive and extracts it to a target directory on the server. The extraction function (ExtractTarGz in api/archive/targz.go) constructed output paths using filepath.Clean(filepath.Join(outputDirPath, header.Name)). This combination does not prevent directory traversal — a tar entry named ../../etc/cron.d/evil resolves to a path outside the extraction root, so a crafted archive can write files to arbitrary locations on the server filesystem. This vulnerability is fixed in 2.33.8.
- Affected products
- Portainer Community Edition
- Portainer
- < 2.33.8
- Fix
- Available
- CVSS 3.1
- 5.5 MEDIUM
- EPSS
- 0.6% (46th percentile)
- Weakness
- CWE-22
- NVD status
- Analyzed
- Published
- 2026-05-28
No indexed exploits for CVE-2026-44885 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-44885 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.