Vulnerability · Published Aug 13, 2026 · Assigned by VulnCheck

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

High 7.1

In plain English

A high-severity security flaw in server from budibase. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.3%top 72.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@budibase/server	no fix listed	GHSA-pmpg-2mxq-6xwr

Affected products (as reported)

Vendor	Product	Versions
budibase	server	0 – before 3.40.0

Weakness: CWE-943 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References

GitHub Security Advisory (GHSA-pmpg-2mxq-6xwr) vendor-advisory
VulnCheck Advisory: Budibase before 3.40.0 NoSQL Injection via MongoDB datasource third-party-advisory