PyPI/nltk CVE-2026-79657: critical 9.8, EPSS 1.27%
NLTK: Allowlisted pickle loaders still permit code execution in current source
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-x99w-6fgc-pmfw
- nvd: CVE-2026-79657
- https://github.com/nltk/nltk/security/advisories/GHSA-x99w-6fgc-pmfw
- https://github.com/nltk/nltk/commit/c3e37113742a1ebeeb4f2ca58941f320f98805ea
- 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-2026-3735.yaml
- https://www.vulncheck.com/advisories/nltk-before-3.10.3-remote-code-execution-via-unsafe-pickle-deserialization
CVE-2026-79657 · published · modified · JSON