{"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_01M5NQDP4GZ2T1VFVB2D2AD6PT","modified_at":"2026-10-24T09:47:32.148329527Z","published_at":"2026-08-03T08:17:17.880Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-12259","https://security-tracker.debian.org/tracker/CVE-2026-12259"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-12259#Debian:13/nltk","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-12259"}],"summary":"In nltk version 3.9.4, the `nltk.downloader.Downloader._download_package()` function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. T"}