PT-2026-139792

CVE-2026-123511

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Published

2026-11-08

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Updated

2026-11-08

Description by

CVSS 3.1
4.3
Medium
MetricsAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
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.
Exploitability
Fix
Impacts
Vendors
Affected products
Weakness enumeration
CWE-770: Allocation of Resources Without Limits or Throttling
Related identifiers
CVE-2026-123511
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