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Medium · 6.5 CVE-2026-123519 EUVD-2026-119404GHSA-94xf-3vwp-m22j

Vikunja before 2.7.1 Memory Exhaustion DoS via WeKan and Vikunja-File Imports

Published Nov 8, 2026 · Updated Nov 12, 2026 · Assigned by VulnCheck

Description

Vikunja before 2.7.1 contains a denial of service vulnerability that allows authenticated users to exhaust API process memory by uploading WeKan or vikunja-file imports with no item-count cap. Attackers can submit a ~22 MB WeKan JSON with hundreds of thousands of cards or duplicate IDs to the wekan migrate endpoint, triggering OOM and crashing the instance.

Affected products

VendorProductAffectedFixed
go-vikunja vikunja < 2.7.1 2.7.1

References