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CVE-2026-0846

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

CVSS 3.0 8.6 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-0846

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-0846

Published

nltk/nltk

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "nltk",
                    "product": "nltk/nltk",
                    "versions": [
                        {
                            "version": "unspecified",
                            "status": "affected",
                            "versionType": "custom",
                            "lessThanOrEqual": "latest"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON