---
cve: "CVE-2019-14751"
severity: "LOW"
cvss: 3.1
epss: "5.7%"
vendor: "n/a"
kev: false
exploited: false
published: "2019-08-22 16:15:10"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T08:12:58+02:00"
---

# CVE-2019-14751

> 3.1 LOW · 🧪 PoC

## Beschreibung

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.

## Patch verfügbar (OSV)

- acca8d573878e173379fe190d7f14f298b12dac9 (Commit)
- f59d7ed8df2e0e957f7f247fe218032abdbe9a10 (Commit)

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2019-14751) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_