{"action":"Upgrade nltk to 3.10.3 or later.","affected":[{"fixed":"3.10.3","introduced":"0"}],"component":"nltk","cve_ids":["CVE-2026-81725"],"ecosystem":"PyPI","epss":0.00369,"exploited":false,"fixed_versions":["3.10.3"],"ghsa_id":"GHSA-8mpw-7fpc-4gqj","id":"tcs_01M5KF8MTNP6ZBBQ2657DJABB0","modified_at":"2026-09-08T20:45:04.346016767Z","published_at":"2026-09-08T20:28:46Z","references":["https://osv.dev/vulnerability/GHSA-8mpw-7fpc-4gqj","https://github.com/nltk/nltk/security/advisories/GHSA-8mpw-7fpc-4gqj","https://nvd.nist.gov/vuln/detail/CVE-2026-81725","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-2026-3752.yaml","https://www.vulncheck.com/advisories/nltk-before-3.10.3-regular-expression-denial-of-service-via-pl196xcorpusreader"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"GHSA-8mpw-7fpc-4gqj","url":"https://osv.dev/vulnerability/GHSA-8mpw-7fpc-4gqj"},{"source":"nvd","source_id":"CVE-2026-81725","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81725"}],"summary":"NLTK: Pl196xCorpusReader has quadratic ReDoS on malformed TEI blocks"}