CVE-2026-91968
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Sep 15, 2026
Vendor
unknown
Description
vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the task-filter endpoint that accepts deeply nested filter expressions without recursion depth limits. Authenticated attackers can supply thousands of nested parentheses in the filter query parameter to exhaust memory and terminate the API process.