CVE-2026-123501

EUVD-2026-119386
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 23.64%
Common Weakness Enumeration
References
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-9hxw-pxcq-4q8q
https://www.vulncheck.com/advisories/vikunja-before-2.7.1-memory-exhaustion-dos-via-unbounded-image-decodes