medium · CVSS v3 4.3 · CVSS v4 5.3

CVE-2026-123511

Vikunja before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated CalDAV client…

Description

Vikunja before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated CalDAV clients to create unbounded dummy tasks by sending VTODOs with thousands of RELATED-TO properties. Attackers can repeat unknown related UIDs in a single PUT request to generate thousands of task, relation, and event rows, bloating the database and overloading the event pipeline.

Scores

Severity
medium
CVSS v2
4
CVSS v3
4.3
CVSS v4
5.3
EPSS
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