CVE-2025-71408

Katalog CVE

CVSS 7.8 · High EPSS 0,27%

Kerentanan Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') pada nltk. Skor CVSS 3.1 7.8 (High) menurut vulncheck.com.

Deskripsi (NVD)

NLTK (Natural Language Toolkit) before version 3.9.3 contains an eval injection vulnerability in the nltk.collocations module that allows an attacker who controls command-line arguments to execute arbitrary Python code. When collocations.py is invoked directly, the __main__ block passes command-line arguments directly to eval() as suffixes of BigramAssocMeasures without allowlist validation or sanitization, enabling an attacker to supply a Python expression that escapes the intended attribute lookup and executes arbitrary code including OS commands via the os module.

Rincian

Terbit di NVD

24 Juli 2026

Terakhir diubah

8 Oktober 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

EPSS (30 hari)

0,27% peluang dieksploitasi; lebih tinggi dari 17,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/nltk/nltk/commit/66f14096d952ec8f04934f515e027534bd4eb0ac patch
• https://github.com/nltk/nltk/pull/3465 issue tracking · patch
• https://www.vulncheck.com/advisories/nltk-eval-injection-via-collocations-py-command-line-arguments patch · advisory pihak ketiga
• https://aydinnyunus.github.io/2026/06/07/command-injection-nltk-collocations-eval/ exploit · press/media coverage · advisory pihak ketiga
• https://github.com/nltk/nltk/releases/tag/3.9.3 release notes