{"action":"Upgrade nltk to 3.10.0 or later.","affected":[{"fixed":"3.10.0","introduced":"0"}],"component":"nltk","cve_ids":["CVE-2026-12072"],"ecosystem":"PyPI","exploited":false,"fixed_versions":["3.10.0"],"ghsa_id":"GHSA-6hm5-jgcp-p838","id":"tcs_01M5KH65EYXTQQK4H1Q847F8J7","modified_at":"2026-08-04T14:30:27.310060997Z","published_at":"2026-08-04T11:34:45.986151Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3581","https://github.com/nltk/nltk/security/advisories/GHSA-6hm5-jgcp-p838","https://github.com/nltk/nltk","https://pypi.org/project/nltk","https://github.com/advisories/GHSA-6hm5-jgcp-p838","https://nvd.nist.gov/vuln/detail/CVE-2026-12072"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-3581","url":"https://osv.dev/vulnerability/PYSEC-2026-3581"}],"summary":"Natural Language Toolkit (NLTK): Path Traversal in NKJPCorpusReader leads to Arbitrary File Read and bypasses the nltk.pathsec sandbox (ENFORCE=True)"}