Medium severity6.5NVD Advisory· Published Sep 15, 2026
CVE-2026-91968
CVE-2026-91968
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.
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Affected products
1Patches
Vulnerability mechanics
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