{"action":"Upgrade nltk to 3.10.3-1 or later.","affected":[{"fixed":"3.10.3-1","introduced":"0"}],"component":"nltk","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.10.3-1"],"id":"tcs_01M5NVW1Q0NAC5378B1JE7ZG83","modified_at":"2026-10-01T03:03:51.061644127Z","published_at":"2026-08-27T17:21:02.800Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-81722","https://security-tracker.debian.org/tracker/CVE-2026-81722"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-81722#Debian:14/nltk","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-81722"}],"summary":"nltk PorterStemmer in versions <= 3.10.2 (fixed in 3.10.3) contains an inefficient-algorithmic-complexity denial of service in PorterStemmer.stem(). The _is_consonant() helper walks backward over the"}