Directory Traversal Affecting nltk package, versions <3.9.3-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.43% (35th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-NLTK-15445095
  • published10 Mar 2026
  • disclosed9 Mar 2026

Introduced: 9 Mar 2026

CVE-2026-0846  (opens in a new tab)
CWE-36  (opens in a new tab)

How to fix?

Upgrade Debian:unstable nltk to version 3.9.3-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nltk package and not the nltk package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A vulnerability in the filestring() function of the nltk.util module in nltk version 3.9.2 allows arbitrary file read due to improper validation of input paths. The function directly opens files specified by user input without sanitization, enabling attackers to access sensitive system files by providing absolute paths or traversal paths. This vulnerability can be exploited locally or remotely, particularly in scenarios where the function is used in web APIs or other interfaces that accept user-supplied input.

CVSS Base Scores

version 3.1