CVE-2026-0846

high

Description

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.

References

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0846.json

https://huntr.com/bounties/007b84f8-418e-4300-99d0-bf504c2f97eb

https://bugzilla.redhat.com/show_bug.cgi?id=2445826

https://access.redhat.com/security/cve/CVE-2026-0846

https://access.redhat.com/errata/RHSA-2026:19712

https://access.redhat.com/errata/RHSA-2026:10184

Details

Source: Mitre, NVD

Published: 2026-03-09

Updated: 2026-07-15

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

EPSS

EPSS: 0.00077