CVE-2026-44885

Sažetak

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.

Reference

CVSS

Base:	5.5
Impact:	4.2
Exploitability:	1.2

Pristup

Vektor	Složenost	Autentikacija
NETWORK	LOW	HIGH

Impact

Povjerljivost	Cjelovitost	Dostupnost
NONE	HIGH	LOW

CVSS vektor

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

Zadnje važnije ažuriranje

01-06-2026 - 18:08

Objavljeno

28-05-2026 - 22:16