CVE-2026-66897
Gravedad CVSS v3.1:
CRÍTICA
Tipo:
CWE-22
Limitación incorrecta de nombre de ruta a un directorio restringido (Path Traversal)
Fecha de publicación:
24/08/2026
Última modificación:
25/08/2026
Descripción
*** Pendiente de traducción *** A path traversal vulnerability in LXD's instance template processing allows an attacker with container edit permissions, or any user launching a crafted image, to overwrite arbitrary files on the host system as root. When processing target template paths specified in metadata.yaml, LXD validates the path against a confined os.Root directory handle but subsequently opens and creates the file using os.Create with an unconfined string path. This discrepancy between path resolution checks and file creation allows an attacker to escape directory confinement, overwrite root-owned host files, and achieve host root code execution.
Impacto
Puntuación base 3.x
9.90
Gravedad 3.x
CRÍTICA



