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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-35599

Vikunja has an Algorithmic Complexity DoS in Repeating Task Handler

Description

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the addRepeatIntervalToTime function uses an O(n) loop that advances a date by the task's RepeatAfter duration until it exceeds the current time. By creating a repeating task with a 1-second interval and a due date far in the past, an attacker triggers billions of loop iterations, consuming CPU and holding a database connection for minutes per request. This vulnerability is fixed in 2.3.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

go-vikunja vikunja

  • < 2.3.0affected

References