critical · CVSS v3 8.8 · CVSS v4 8.7

CVE-2026-123531

Vikunja from 1.0.0 before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated us…

Description

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.

Scores

Severity
critical
CVSS v2
9
CVSS v3
8.8
CVSS v4
8.7
EPSS
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