{"action":"Upgrade nltk to 3.10.3 or later.","affected":[{"fixed":"3.10.3","introduced":"0"}],"component":"nltk","cve_ids":["CVE-2026-81722"],"ecosystem":"PyPI","epss":0.00521,"exploited":false,"fixed_versions":["3.10.3"],"ghsa_id":"GHSA-ww6m-cw3f-q94g","id":"tcs_01M5KG2ZQN8FEFZ7F036WMAFAV","modified_at":"2026-09-10T03:50:54.572733114Z","published_at":"2026-09-02T14:36:15Z","references":["https://osv.dev/vulnerability/GHSA-ww6m-cw3f-q94g","https://github.com/nltk/nltk/security/advisories/GHSA-ww6m-cw3f-q94g","https://nvd.nist.gov/vuln/detail/CVE-2026-81722","https://github.com/nltk/nltk/commit/7808692d451b962711005d954859bb83aabcf8fa","https://github.com/nltk/nltk","https://github.com/nltk/nltk/releases/tag/v3.10.3","https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2026-3738.yaml","https://www.vulncheck.com/advisories/nltk-porterstemmer-before-3.10.3-quadratic-time-dos"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-ww6m-cw3f-q94g","url":"https://osv.dev/vulnerability/GHSA-ww6m-cw3f-q94g"}],"summary":"NLTK: Quadratic-time DoS in PorterStemmer via long runs of 'y'"}