CVE-2026-91979

Name of the Vulnerable Software and Affected Versions Vikunja versions prior to 2.6.0

Description Authenticated users can cause a denial of service during data import because the system fails to limit archive expansion. An attacker can upload highly compressed files that expand to tens of gigabytes in memory and on disk, which exhausts server resources and crashes the instance.

Recommendations Update to version 2.6.0 or later.