CVE-2026-44885

Katalog CVE

CVSS 5.5 · Medium EPSS 0,80%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada portainer. Skor CVSS 3.1 5.5 (Medium) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

28 Mei 2026

Terakhir diubah

21 Juli 2026

Status NVD

Analyzed

CVSS 3.1

5.5 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

0,80% peluang dieksploitasi; lebih tinggi dari 55,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/portainer/portainer/security/advisories/GHSA-m8fg-67j7-cx4v exploit · advisory pihak ketiga
• https://github.com/portainer/portainer-suite/pull/1875 broken link