CVE-2026-123523

MediumCVSS 6.5/10Last modified Nov 12, 2026

Description

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-770

Affected software

VendorProductVersions
go-vikunjavikunja< 2.7.1

References

Timeline

Published
Nov 8, 2026
Last modified
Nov 12, 2026
NVD status
Deferred

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CVE-2026-123523: Medium severity, CVSS 6.5 | Vulnix