CVE-2026-23986
Gravedad CVSS v4.0:
MEDIA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
21/01/2026
Última modificación:
02/02/2026
Descripción
*** Pendiente de traducción *** Copier is a library and CLI app for rendering project templates. Prior to version 9.11.2, Copier suggests that it's safe to generate a project from a safe template, i.e. one that doesn't use unsafe features like custom Jinja extensions which would require passing the `--UNSAFE,--trust` flag. As it turns out, a safe template can currently write to arbitrary directories outside the destination path by using directory a symlink along with `_preserve_symlinks: true` and a generated directory structure whose rendered path is inside the symlinked directory. This way, a malicious template author can create a template that overwrites arbitrary files (according to the user's write permissions), e.g., to cause havoc. Version 9.11.2 patches the issue.
Impacto
Puntuación base 4.0
6.90
Gravedad 4.0
MEDIA
Puntuación base 3.x
7.10
Gravedad 3.x
ALTA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:copier-org:copier:*:*:*:*:*:python:*:* | 9.11.2 (excluyendo) |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página



