PyPI/nltk CVE-2026-78682: unknown, EPSS 0.43%
NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen (and callers nltk.data.load, nltk.downloader.Downloader.index/download) when an HTTP proxy is configured
Action: Upgrade nltk to 3.10.3 or later.
pip install nltk==3.10.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.10.3 | - |
Fixed versions
| 3.10.3 |
Sources
- osv: PYSEC-2026-3733
- https://www.vulncheck.com/advisories/nltk-before-ssrf-protection-bypass-via-proxy
- https://github.com/nltk/nltk/security/advisories/GHSA-6ww7-3frv-cqxh
CVE-2026-78682 · published · modified · JSON