What is CVE-2026-123516?

CVE-2026-123516 is a medium-severity vulnerability in Go-Vikunja Vikunja, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2026-11-08.

How severe is CVE-2026-123516?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Resource exhaustion in Go-Vikunja Vikunja

CVE-2026-123516

Vikunja before 2.7.1 contains a resource exhaustion vulnerability in the vikunja-file ZIP importer that allows authenticated users to consume CPU and memory by uploading archives with excessive entries. Attackers can upload export ZIPs containing many empty or non-files/ entries that bypass the per-entry caps, forcing scanArchive to process every entry twice.

Published 2026-11-08 · last modified 2026-11-08.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Go-Vikunja Vikunja

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

GitHub Security Advisory (GHSA-mqq8-869v-48q8) (vendor-advisory)
VulnCheck Advisory: Vikunja before 2.7.1 Resource Exhaustion via Vikunja-File ZIP Import (third-party-advisory)

Frequently asked questions

What is CVE-2026-123516?: CVE-2026-123516 is a medium-severity vulnerability in Go-Vikunja Vikunja, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2026-11-08.
How severe is CVE-2026-123516?: Medium severity. CVSS v3 base score is 4.3 out of 10.