PYSEC-2026-2237
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2026-33236
- Alias
- GHSA-469j-vmhf-r6v7
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Description
NLTK (Natural Language Toolkit) is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. In versions 3.9.3 and prior, the NLTK downloader does not validate the `subdir` and `id` attributes when processing remote XML index files. Attackers can control a remote XML index server to provide malicious values containing path traversal sequences (such as `../`), which can lead to arbitrary directory creation, arbitrary file creation, and arbitrary file overwrite. Commit 89fe2ec2c6bae6e2e7a46dad65cc34231976ed8a patches the issue.
Paquets affectés
| Paquet | Versions |
|---|---|
| PyPI · nltk | introduced 0, fixed 3.9.4 |
Références
- https://access.redhat.com/security/cve/CVE-2026-33236 WEB
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33236.json WEB
- https://access.redhat.com/errata/RHSA-2026:10184 ADVISORY
- https://access.redhat.com/errata/RHSA-2026:19712 ADVISORY
- https://access.redhat.com/errata/RHSA-2026:37275 ADVISORY
- https://bugzilla.redhat.com/show_bug.cgi?id=2449824 REPORT
- https://github.com/nltk/nltk/commit/89fe2ec2c6bae6e2e7a46dad65cc34231976ed8a FIX
- https://github.com/nltk/nltk/security/advisories/GHSA-469j-vmhf-r6v7 EVIDENCE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |