Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-57571

Gravedad CVSS v3.1:
CRÍTICA
Tipo:
CWE-22 Limitación incorrecta de nombre de ruta a un directorio restringido (Path Traversal)
Fecha de publicación:
06/07/2026
Última modificación:
07/07/2026

Descripción

*** Pendiente de traducción *** Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, when the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path or traversal escaped the downloads directory, giving an arbitrary file write with attacker-controlled contents; the HTTP crawler path uses the response Content-Disposition filename and the browser crawler path uses the download's suggested filename. Because the written bytes are attacker-controlled, this can escalate to remote code execution. This issue is fixed in version 0.9.0.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:* 0.9.0 (excluyendo)