{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"nltk","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":[],"id":"tcs_01M5NTNCEANQBFXP8HXYCVZ8RJ","modified_at":"2026-10-15T09:47:40.340744328Z","published_at":"2026-08-22T15:16:19.633Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-66393","https://security-tracker.debian.org/tracker/CVE-2026-66393"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-66393#Debian:13/nltk","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-66393"}],"summary":"NLTK versions before 3.9.4 contain an unbounded recursion vulnerability in JSONTaggedDecoder.decode_obj() that allows attackers to cause denial of service by supplying deeply nested JSON structures. A"}