CVE-2026-66484
Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-22
Limitación incorrecta de nombre de ruta a un directorio restringido (Path Traversal)
Fecha de publicación:
10/08/2026
Última modificación:
10/08/2026
Descripción
*** Pendiente de traducción *** GNU cpio contains a Path Traversal vulnerability in its tar archive extraction functionality. When extracting a tar archive in copy-in mode with the --no-absolute-filenames option, the extracted file name is normalized but the tar hard-link target is passed to the link_to_name function without equivalent sanitization before calling link function. A tar archive provided by an attacker, containing a hard-link entry whose linkname is set to an absolute path outside the extraction directory, can cause cpio to create a hard link to an existing file outside the intended extraction directory, breaking the expected guarantee of --no-absolute-filenames and allowing archive-controlled linkage to external files.<br />
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This issue has been fixed in commit e2b9cbdd3354d2b1569b7390d1bc15c1930559ad
Impacto
Puntuación base 4.0
4.60
Gravedad 4.0
MEDIA