MinorCritical vulnerability

CVE-2026-123523 (CVSS 7.1)

NVD · officialPublished Nov 8, 2026Risk 23/100EPSS 0.3%

Vikunja before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated users to exhaust server memory by requesting avatars at many distinct sizes. Attackers can upload a noisy avatar and fetch it at each size up to 1024, caching roughly a gigabyte per account without eviction and causing the API process to be OOM-killed.

Technical details

CVSS

7.1

AV:NetworkAC:LowPR:LowUI:None

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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