CVE-2026-73617: Budibase Server

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Budibase before 3.40.0 contains a NoSQL injection vulnerability in the MongoDB datasource integration where user-supplied parameters are enriched with handlebars using noEscaping: true and parsed without operator filtering. Attackers can inject MongoDB operators through query parameters to bypass per-user access controls, read arbitrary documents, execute JavaScript via $where operators, or modify collections through update and delete operations.

Affected products

• Budibase Server: before 3.40.0 (fixed in 3.40.0)

Published 2026-08-13. Last modified 2026-10-08.