CVE-2026-35599
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.
- Score
- CVSS 3.1 6.5 Medium
- Status
- Analyzed - security-advisories@github.com
- Published
- 2026-04-10
- Last modified
- 2026-10-26
- Weaknesses
- CWE-407
Affected products
References
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-r4fg-73rc-hhh7
- https://github.com/go-vikunja/vikunja/pull/2577
- https://github.com/go-vikunja/vikunja/commit/6df0d6c8f54b01db6464c42810e40e55f12b481b
- https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0