{"action":"Upgrade python to 3.10.21 (3.10.x), 3.11.16 (3.11.x), 3.12.14 (3.12.x), 3.13.14 (3.13.x) or 3.14.6 (3.14.x) or later.","affected":[{"fixed":"3.10.21","introduced":"0"},{"fixed":"3.11.16","introduced":"3.11.0"},{"fixed":"3.12.14","introduced":"3.12.0"},{"fixed":"3.13.14","introduced":"3.13.0"},{"fixed":"3.14.6","introduced":"3.14.0"}],"component":"python","cve_ids":["CVE-2026-3276"],"ecosystem":"python","exploited":false,"fixed_versions":["3.10.21","3.11.16","3.12.14","3.13.14","3.14.6"],"id":"tcs_01M5JTNR8FDK06NZ208HT3Z5V8","modified_at":"2026-08-11T00:23:36Z","published_at":"2026-06-03T14:29:39Z","references":["https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2026-25.json","https://mail.python.org/archives/list/security-announce@python.org/thread/PP5HB4K7727OBBM76KA2ILID76K3OZGZ/","https://www.cve.org/CVERecord?id=CVE-2026-3276"],"severity":{"label":"medium","score":6.3},"sources":[{"source":"python-runtime","source_id":"PSF-2026-25","url":"https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2026-25.json"}],"summary":"Potential DoS via quadratic complexity in unicodedata.normalize()"}