CVE-2019-14751
HIGH7.5EPSS 3.2%NLTK Vulnerable To Path Traversal
Published: 8/23/2019Modified: 4/28/2026
Description
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.
Affected packages (3)
- Debian/nltkfrom 0, < 3.4.5-1
- PyPI/nltkfrom 0, < 3.4.5
- PyPI/nltkfrom 0, < f59d7ed8df2e0e957f7f247fe218032abdbe9a10 | from 0, < 3.4.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
References (16)
- ADVISORYhttps://github.com/advisories/GHSA-mr7p-25v2-35wr
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2019-14751
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2019-14751
- PATCHhttps://github.com/nltk/nltk
- WEBhttp://lists.opensuse.org/opensuse-security-announce/2020-03/msg00054.html
- WEBhttp://lists.opensuse.org/opensuse-security-announce/2020-04/msg00001.html
- WEBhttps://github.com/mssalvatore/CVE-2019-14751_PoC
- WEBhttps://github.com/nltk/nltk/blob/3.4.5/ChangeLog
- WEBhttps://github.com/nltk/nltk/commit/f59d7ed8df2e0e957f7f247fe218032abdbe9a10
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2019-106.yaml
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/QI4IJGLZQ5S7C5LNRNROHAO2P526XE3D
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/QI4IJGLZQ5S7C5LNRNROHAO2P526XE3D/
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/ZGZSSEJH7RHH3RBUEVWWYT75QU67J7SE
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/ZGZSSEJH7RHH3RBUEVWWYT75QU67J7SE/
- WEBhttps://salvatoresecurity.com/zip-slip-in-nltk-cve-2019-14751
- WEBhttps://salvatoresecurity.com/zip-slip-in-nltk-cve-2019-14751/