Vikunja: Unbounded CSV row cardinality permits API process termination

Unbounded CSV row cardinality permits API process termination Summary The authenticated v2 CSV migration route caps upload bytes but not parsed row cardinality. It reads every record into a string and then materializes a full task object for every row before insertion. Two million one-cell rows f...

CVE-2026-91969 vikunja before 2.6.0 Resource Exhaustion via CSV Migration

vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the POST /api/v2/migration/csv/migrate endpoint that fails to limit parsed row cardinality. Authenticated attackers can upload multipart CSV files with millions of tiny records to exhaust process memory and terminate the...