{"action":"Upgrade nltk to 3.10.0 or later.","affected":[{"fixed":"3.10.0","introduced":"0"}],"component":"nltk","cve_ids":["CVE-2026-80205"],"ecosystem":"PyPI","epss":0.00651,"exploited":false,"fixed_versions":["3.10.0"],"ghsa_id":"GHSA-rrv8-h7p8-rx55","id":"tcs_01M5KFYKFMYMN9RJYAM0S2ED0Y","modified_at":"2026-09-08T20:45:04.338061792Z","published_at":"2026-09-08T20:28:13Z","references":["https://osv.dev/vulnerability/GHSA-rrv8-h7p8-rx55","https://github.com/nltk/nltk/security/advisories/GHSA-rrv8-h7p8-rx55","https://nvd.nist.gov/vuln/detail/CVE-2026-80205","https://github.com/nltk/nltk/pull/3674","https://github.com/nltk/nltk/commit/d8e47539317b571ab1422981f5b9653d5eae1249","https://github.com/nltk/nltk","https://github.com/nltk/nltk/releases/tag/v3.10.0","https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2026-3750.yaml","https://www.vulncheck.com/advisories/nltk-before-3.10.0-redos-via-text-findall-unvalidated-regex","http://www.openwall.com/lists/oss-security/2026/09/01/3"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-rrv8-h7p8-rx55","url":"https://osv.dev/vulnerability/GHSA-rrv8-h7p8-rx55"}],"summary":"NLTK: ReDoS in nltk.text.Text.findall() via unvalidated user-supplied regular expressions"}