CVE-2026-23954

Katalog CVE

CVSS 8.7 · High EPSS 0,79%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada linuxcontainers incus. Skor CVSS 3.1 8.7 (High) menurut github.com.

Deskripsi (NVD)

Incus is a system container and virtual machine manager. Versions 6.21.0 and below allow a user with the ability to launch a container with a custom image (e.g a member of the ‘incus’ group) to use directory traversal or symbolic links in the templating functionality to achieve host arbitrary file read, and host arbitrary file write. This ultimately results in arbitrary command execution on the host. When using an image with a metadata.yaml containing templates, both the source and target paths are not checked for symbolic links or directory traversal. This can also be exploited in IncusOS. A fix is planned for versions 6.0.6 and 6.21.0, but they have not been released at the time of publication.

Rincian

Terbit di NVD

22 Januari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

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

EPSS (30 hari)

0,79% peluang dieksploitasi; lebih tinggi dari 54,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/lxc/incus/security/advisories/GHSA-7f67-crqm-jgh7 exploit · advisory vendor
• https://github.com/user-attachments/files/24473601/templates_arbitrary_write.patch patch
• https://github.com/user-attachments/files/24473599/template_arbitrary_write.sh exploit
• https://github.com/lxc/incus/blob/HEAD/internal/server/instance/drivers/driver_lxc.go#L7215 product
• https://github.com/lxc/incus/blob/HEAD/internal/server/instance/drivers/driver_lxc.go#L7294 product