CVE-2026-91969

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.

CVSS Vector

References

• https://github.com/go-vikunja/vikunja/security/advisories/GHSA-pqf9-h8g4-8gmh
• https://www.vulncheck.com/advisories/vikunja-before-2.6.0-resource-exhaustion-via-csv-migration