{"action":"Upgrade nltk to 3.9.4 or later.","affected":[{"fixed":"3.9.4","introduced":"0"}],"component":"nltk","cve_ids":["CVE-2026-33230"],"ecosystem":"PyPI","epss":0.00344,"exploited":false,"fixed_versions":["3.9.4"],"ghsa_id":"GHSA-gfwx-w7gr-fvh7","id":"tcs_01M5KGY8S8EG935W2C3BZHK0XP","modified_at":"2026-07-13T07:15:50.517124718Z","published_at":"2026-03-20T23:16:46.680Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2235","https://github.com/nltk/nltk/commit/1c3f799607eeb088cab2491dcf806ae83c29ad8f","https://github.com/nltk/nltk/commit/40d0bc1d484a3458d6a63ecb5ba4957ab16ba14e","https://github.com/nltk/nltk/security/advisories/GHSA-gfwx-w7gr-fvh7"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"PYSEC-2026-2235","url":"https://osv.dev/vulnerability/PYSEC-2026-2235"}],"summary":"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, `nlt"}