CVE-2026-81727

Katalog CVE

CVSS 7.1 · High EPSS 0,19%

Kerentanan Improper Link Resolution Before File Access ('Link Following') pada nltk. Skor CVSS 3.1 7.1 (High) menurut vulncheck.com.

Deskripsi (NVD)

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incr_download methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader directory can create hardlinks pointing to outside-root files that are then overwritten during normal package extraction, mutating files outside the intended install tree.

Rincian

Terbit di NVD

27 Agustus 2026

Terakhir diubah

31 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

7.1 (High), sumber vulncheck.com
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

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

EPSS (30 hari)

0,19% peluang dieksploitasi; lebih tinggi dari 7,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/nltk/nltk/security/advisories/GHSA-f794-5jv7-7672 exploit · advisory vendor
• https://www.vulncheck.com/advisories/nltk-before-3.10.3-hardlink-file-overwrite-via-downloader advisory pihak ketiga