{"action":"Upgrade python-icalendar to 7.3.0-1 or later.","affected":[{"fixed":"7.3.0-1","introduced":"0"}],"component":"python-icalendar","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["7.3.0-1"],"id":"tcs_01M5NVE2KN2EE2ZM7NQAPGWTCZ","modified_at":"2026-10-09T17:00:11.482092814Z","published_at":"2026-09-22T19:16:51.443Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-77399","https://security-tracker.debian.org/tracker/CVE-2026-77399"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-77399","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-77399"}],"summary":"icalendar is an RFC 5545 compatible parser and generator of iCalendar files for Python. From 6.1.0 until 7.2.2, vInt.from_ical accepts an attacker-controlled VALARM REPEAT value and applications that"}