{"action":"Upgrade nltk to 3.10.0 or later.","affected":[{"fixed":"3.10.0","introduced":"0"}],"component":"nltk","cve_ids":["CVE-2026-12061"],"ecosystem":"PyPI","exploited":false,"fixed_versions":["3.10.0"],"ghsa_id":"GHSA-fg7f-2386-8897","id":"tcs_01M5KFF8NQCE8NE1F6N5PPNSSY","modified_at":"2026-09-10T03:50:51.940502717Z","published_at":"2026-07-31T16:51:09Z","references":["https://osv.dev/vulnerability/GHSA-fg7f-2386-8897","https://github.com/nltk/nltk/security/advisories/GHSA-fg7f-2386-8897","https://github.com/nltk/nltk"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-fg7f-2386-8897","url":"https://osv.dev/vulnerability/GHSA-fg7f-2386-8897"}],"summary":"Natural Language Toolkit (NLTK): ReDoS in NLTK ReviewsCorpusReader FEATURES regex"}