Vikunja is an open-source self-hosted task management platform. Starting in version 1.0.0-rc0 and prior to version 2.2.0, unbounded image decoding and resizing during preview generation lets an attacker exhaust CPU and memory with highly compressed but extremely large-dimension images. Version 2.2.0 patches the issue.
https://vikunja.io/changelog/vikunja-v2.2.0-was-released
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-wc83-79hj-hpmq