What’s Vulnerable › Vulnerabilities

CVE-2026-73617: Budibase before 3.40.0 NoSQL Injection via MongoDB datasource

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-13 · updated 2026-10-24
• Weakness: CWE-943

Description

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

How to fix

Upgrade to a fixed version: budibase server 3.40.0. Check the vendor advisory for mitigations.

References

• https://github.com/Budibase/budibase/security/advisories/GHSA-pmpg-2mxq-6xwr
• https://www.vulncheck.com/advisories/budibase-before-nosql-injection-via-mongodb-datasource

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