{"action":"Upgrade python3.14 to 3.14.2-1 or later.","affected":[{"fixed":"3.14.2-1","introduced":"0"}],"component":"python3.14","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.14.2-1"],"id":"tcs_01M5NMWSN5WB6VC1PR7RSW85DN","modified_at":"2026-10-16T14:00:07.873005891Z","published_at":"2026-01-21T20:16:04.423Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-12781","https://security-tracker.debian.org/tracker/CVE-2025-12781"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-12781#Debian:14/python3.14","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-12781"}],"summary":"When passing data to the b64decode(), standard_b64decode(), and urlsafe_b64decode() functions in the \"base64\" module the characters \"+/\" will always be accepted, regardless of the value of \"altchars\""}