CVE-2019-14751 - Vulnerability Details - OpenCVE

NLTK Downloader before 3.4.5 is vulnerable to a directory traversal, allowing attackers to write arbitrary files via a ../ (dot dot slash) in an NLTK package (ZIP archive) that is mishandled during extraction.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.03222.

Key SSVC decision points have not yet been added.

Vendors	Products
Nltk	Nltk

Configuration 1 [-]

cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2019-0091	NLTK Downloader before 3.4.5 is vulnerable to a directory traversal, allowing attackers to write arbitrary files via a ../ (dot dot slash) in an NLTK package (ZIP archive) that is mishandled during extraction.
Github GHSA	GHSA-mr7p-25v2-35wr	NLTK Vulnerable To Path Traversal
Ubuntu USN	USN-4106-1	NLTK vulnerability

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00054.html
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00001.html
https://github.com/mssalvatore/CVE-2019-14751_PoC
https://github.com/nltk/nltk/blob/3.4.5/ChangeLog
https://github.com/nltk/nltk/commit/f59d7ed8df2e0e957f7f247fe218032abdbe9a10
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QI4IJGLZQ5S7C5LNRNROHAO2P526XE3D/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZGZSSEJH7RHH3RBUEVWWYT75QU67J7SE/
https://salvatoresecurity.com/zip-slip-in-nltk-cve-2019-14751/

History

Wed, 16 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.09308}`	epss `{'score': 0.03222}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-08-22T15:59:59

Updated: 2024-08-05T00:26:38.633Z

Reserved: 2019-08-07T00:00:00

Link: CVE-2019-14751

Vulnrichment

No data.

NVD

Status : Modified

Published: 2019-08-22T16:15:10.213

Modified: 2024-11-21T04:27:16.227

Link: CVE-2019-14751

Redhat

No data.

OpenCVE Enrichment

No data.

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