CVE-2026-0846CWE-36

Arbitrary File Read via Absolute Path Input in nltk.util.filestring()

High · published March 9, 2026

CVSS v3.0
8.6
EPSS
1%
Percentile
44.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
8.6 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00539 · 44.6th percentile
Weakness
CWE-36 · Absolute Path Traversal
Published
2026-03-09T19:19Z
EPSS history
Timeline
  • 09 MAR 19:19Z
    Arbitrary File Read via Absolute Path Input in nltk.util.filestring()
    cvelistv5