{"id":"ECHO-34ff-644c-194f","upstream":["CVE-2026-12259","GHSA-5wp5-5229-5g6q"],"severity":[],"modified":"2026-09-09T00:00:42.139Z","affected":[{"package":{"ecosystem":"Echo:PyPI","name":"nltk","purl":"pkg:pypi/nltk"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.9.3"}]}]}],"references":[{"type":"WEB","url":"https://advisory.echohq.com/cve/CVE-2026-12259"}]}