CVE-2026-91969

MediumCVSS 6.5/10Last modified Sep 17, 2026

Description

vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the POST /api/v2/migration/csv/migrate endpoint that fails to limit parsed row cardinality. Authenticated attackers can upload multipart CSV files with millions of tiny records to exhaust process memory and terminate the API service.

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-400

Affected software

Vendor	Product	Versions
go-vikunja	vikunja	>= 2.5.0, < 2.6.0

References

Timeline

Published: Sep 15, 2026
Last modified: Sep 17, 2026
NVD status: Deferred

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