Resource exhaustion in Go-Vikunja Vikunja
CVE-2026-123531
Vikunja from 1.0.0 before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated users to bypass service.maxitemsperpage by sending page=0 to /api/v1 list endpoints. Attackers can self-register and repeatedly request page=0 to force unbounded SQL queries, memory materialisation, and per-row query fan-out, degrading availability for other users.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
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
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-v579-5fwc-gr28) (vendor-advisory)
- VulnCheck Advisory: Vikunja 1.0.0 before 2.7.1 Pagination Limit Bypass via page=0 Parameter (third-party-advisory)
Frequently asked questions
- What is CVE-2026-123531?
- CVE-2026-123531 is a high-severity vulnerability in Go-Vikunja Vikunja, classified under Uncontrolled Resource Consumption. CVSS score: 8.8/10. Published 2026-11-08.
- How severe is CVE-2026-123531?
- High severity. CVSS v3 base score is 8.8 out of 10.