CVE-2026-39977
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-22
Limitación incorrecta de nombre de ruta a un directorio restringido (Path Traversal)
Fecha de publicación:
09/04/2026
Última modificación:
16/04/2026
Descripción
*** Pendiente de traducción *** flatpak-builder is a tool to build flatpaks from source. From 1.4.5 to before 1.4.8, the license-files manifest key takes an array of paths to user defined licence files relative to the source directory of the module. The paths from that array are resolved using g_file_resolve_relative_path() and validated to stay inside the source directory using two checks - g_file_get_relative_path() which does not resolve symlinks and g_file_query_file_type() with G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS which only applies to the final path component. The copy operation runs on host. This can be exploited by using a crafted manifest and/or source to read arbitrary files from the host and capture them into the build output. This vulnerability is fixed in 1.4.8.
Impacto
Puntuación base 4.0
7.10
Gravedad 4.0
ALTA
Puntuación base 3.x
6.30
Gravedad 3.x
MEDIA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:flatpak:flatpak-builder:*:*:*:*:*:*:*:* | 1.4.5 (incluyendo) | 1.4.8 (excluyendo) |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página



