Vulnerabilities CVE-2026-65915

CVE-2026-65915

High

Open

TLP:CLEAR

NLTK before 3.10.0 Arbitrary File Read via FileSystemPathPointer

NVD CVE.org

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Description

NLTK versions before 3.10.0 contain a logic bug in FileSystemPathPointer.open() where the sandbox validation check compares a normalized path against itself, making the security check permanently inert. Attackers can pass file:// URLs to nltk.data.load() to read arbitrary files accessible to the process user, including credentials and configuration files.

Details

CVSS Score: 7.1
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Confidence: 90%
Published: Aug 22, 2026
Last Modified: Aug 22, 2026

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