CVE-2026-27905

Katalog CVE

CVSS 7.8 · High EPSS 0,22%

Kerentanan Improper Link Resolution Before File Access ('Link Following') pada bentoml. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.36, the safe_extract_tarfile() function validates that each tar member's path is within the destination directory, but for symlink members it only validates the symlink's own path, not the symlink's target. An attacker can create a malicious bento/model tar file containing a symlink pointing outside the extraction directory, followed by a regular file that writes through the symlink, achieving arbitrary file write on the host filesystem. This vulnerability is fixed in 1.4.36.

Rincian

Terbit di NVD

3 Maret 2026

Terakhir diubah

7 Oktober 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-59: Improper Link Resolution Before File Access ('Link Following')

EPSS (30 hari)

0,22% peluang dieksploitasi; lebih tinggi dari 11,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/bentoml/BentoML/security/advisories/GHSA-m6w7-qv66-g3mf exploit · mitigasi · advisory vendor
• https://github.com/bentoml/BentoML/commit/4e0eb007765ac04c7924220d643f264715cc9670 patch