PyPI/nltk CVE-2026-80206: high, EPSS 0.44%
NLTK: ReDoS in nltk.tgrep via unvalidated user-supplied regular expressions
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: GHSA-w3v8-gmh9-3wv7
- https://github.com/nltk/nltk/security/advisories/GHSA-w3v8-gmh9-3wv7
- https://nvd.nist.gov/vuln/detail/CVE-2026-80206
- https://github.com/nltk/nltk/commit/0072ea2fb8be22e038a36e887b7061bb6b9339d9
- https://github.com/nltk/nltk
- https://github.com/nltk/nltk/releases/tag/v3.10.3
- https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2026-3751.yaml
- https://www.vulncheck.com/advisories/nltk-3.10.2-regular-expression-denial-of-service-via-tgrep
CVE-2026-80206 · published · modified · JSON