{"action":"Upgrade python to 3.10.21 (3.10.x), 3.11.16 (3.11.x), 3.12.14 (3.12.x), 3.13.13 (3.13.x) or 3.14.4 (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":"3.13.13","introduced":"3.13.0"},{"fixed":"3.14.4","introduced":"3.14.0"}],"component":"python","cve_ids":["CVE-2026-4519"],"ecosystem":"python","exploited":false,"fixed_versions":["3.10.21","3.11.16","3.12.14","3.13.13","3.14.4"],"id":"tcs_01M5JTP3RBBS61FSXQRM3WYYVE","modified_at":"2026-04-07T22:01:57Z","published_at":"2026-03-20T15:08:32Z","references":["https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2026-14.json","https://mail.python.org/archives/list/security-announce@python.org/thread/AY5NDSS433JK56Q7Q5IS7B37QFZVVOUS/","https://www.cve.org/CVERecord?id=CVE-2026-4519"],"severity":{"label":"high","score":7},"sources":[{"source":"python-runtime","source_id":"PSF-2026-14","url":"https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2026-14.json"}],"summary":"webbrowser.open() allows leading dashes in URLs"}