{"action":"Upgrade nltk to 3.10.3 or later.","affected":[{"fixed":"3.10.3","introduced":"0"}],"component":"nltk","cve_ids":["CVE-2026-79674"],"ecosystem":"PyPI","epss":0.00387,"exploited":false,"fixed_versions":["3.10.3"],"ghsa_id":"GHSA-3gq4-3j92-5w49","id":"tcs_01M5KH71QW2NM4JCAX339SYG3T","modified_at":"2026-09-01T09:15:02.848578247Z","published_at":"2026-08-25T16:17:27.873Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3736","https://www.vulncheck.com/advisories/nltk-path-traversal-via-corpus-reader-constructors","https://github.com/nltk/nltk/security/advisories/GHSA-3gq4-3j92-5w49"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"PYSEC-2026-3736","url":"https://osv.dev/vulnerability/PYSEC-2026-3736"},{"source":"nvd","source_id":"CVE-2026-79674","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79674"}],"summary":"NLTK versions before 3.10.3 contain a path sandbox bypass vulnerability in corpus-reader constructors that allows attackers to read files outside the intended data root. Attackers can supply arbitrary"}