CVE-2026-65915
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Aug 22, 2026
Vendor
unknown
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.