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Medium · 6.5 CVE-2026-123501 EUVD-2026-119386GHSA-qgpv-qrrx-2qgv

Vikunja before 2.7.1 Memory Exhaustion DoS via Unbounded Image Decodes

Published Nov 8, 2026 · Updated Nov 10, 2026 · Assigned by VulnCheck

Description

Vikunja before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated users to exhaust server memory through concurrent image decodes in avatar and background uploads. Attackers can send several parallel tiny, highly compressible PNGs decoded at up to 50 megapixels each, pushing the API process into memory pressure or an OOM kill.

Affected products

VendorProductAffectedFixed
go-vikunja vikunja < 2.7.1 2.7.1

References