Icalendar vulnerabilities

Products

• Icalendar 3

Newest

• collective icalendar icalendar: Denial of service via unbounded VALARM REPEAT expansion CVE-2026-77399 Fix available 6.5 MediumSeptember 22, 2026
• collective icalendar icalendar: Algorithmic Complexity in Equality CVE-2026-55099 Fix available 7.5 HighAugust 25, 2026
• icalendar iCalendar has ICS injection via unsanitized URI property values CVE-2026-33635 Fix available 4.3 MediumMarch 24, 2026