csirt@kutim:~/threat-intel/cve/CVE-2026-85185

Katalog CVE

CVSS 9.6 · Critical EPSS 0,36%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'). Skor CVSS 3.1 9.6 (Critical) menurut ubuntu.com.

Deskripsi (NVD)

Path traversal in the btrfs storage driver in Canonical LXD versions 4.0.2 and later (fixed in 4.0.14, 5.0.10, 5.21.8 and 6.10) on Linux allows an authenticated client with permission to create instances in a project to delete arbitrary files on the host as root. On hosts whose root filesystem is btrfs, the client can also place attacker-controlled content at arbitrary host paths, leading to full host compromise. The client does this with a crafted subvolume path containing ../ sequences, sent in either of two ways: in the optimized_header.yaml of an optimized btrfs backup, or in the btrfs migration header sent by a malicious migration source.

Rincian

Terbit di NVD
28 September 2026
Terakhir diubah
28 September 2026
Status NVD
Deferred
CVSS 3.1
9.6 (Critical), sumber ubuntu.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
EPSS (30 hari)
0,36% peluang dieksploitasi; lebih tinggi dari 28,0% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.