{"action":"Upgrade nltk to 3.10.3 or later.","affected":[{"fixed":"3.10.3","introduced":"0"}],"component":"nltk","cve_ids":["CVE-2026-78682"],"ecosystem":"PyPI","epss":0.00435,"exploited":false,"fixed_versions":["3.10.3"],"ghsa_id":"GHSA-6ww7-3frv-cqxh","id":"tcs_01M5KH719Y9F6W85RGDE2ACTJH","modified_at":"2026-09-01T09:15:03.610403607Z","published_at":"2026-08-25T02:16:52.890Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3733","https://www.vulncheck.com/advisories/nltk-before-ssrf-protection-bypass-via-proxy","https://github.com/nltk/nltk/security/advisories/GHSA-6ww7-3frv-cqxh"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2026-3733","url":"https://osv.dev/vulnerability/PYSEC-2026-3733"}],"summary":"NLTK before 3.10.3 contains a server-side request forgery vulnerability in nltk.pathsec.urlopen (and callers nltk.data.load, nltk.downloader.Downloader.index/download) when an HTTP proxy is configured"}