CVE-2026-62239
Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-59
Incorrecta resolución de una ruta antes de aceder a un fichero (Seguimiento de enlaces)
Fecha de publicación:
13/07/2026
Última modificación:
13/07/2026
Descripción
*** Pendiente de traducción *** FlashAttention through 2.8.3.post1, fixed in commit 0816ef1, contains a symlink attack vulnerability in the download_and_copy() function within hopper/setup.py that extracts NVIDIA toolchain archives without validating symlinks or filtering tar members. A local attacker can pre-plant a symlink in the predictable cache directory to redirect extracted binaries to an attacker-chosen location, enabling arbitrary file write with victim privileges during build time.
Impacto
Puntuación base 4.0
5.30
Gravedad 4.0
MEDIA
Puntuación base 3.x
6.60
Gravedad 3.x
MEDIA
Referencias a soluciones, herramientas e información
- https://github.com/Dao-AILab/flash-attention/commit/0816ef12f424c6ec94b057a72c275b14f6e6edb2
- https://github.com/Dao-AILab/flash-attention/issues/2637
- https://github.com/Dao-AILab/flash-attention/pull/2702
- https://www.vulncheck.com/advisories/flashattention-symlink-attack-via-tarfile-extractall-in-hopper-setup-py



