---
id: CVE-2026-73617
title: >-
  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
summary: >-
  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…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-943
vendor: budibase
product: server
affected:
  - server < 3.40.0
published: '2026-08-13'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:17:37.640'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73617'
references:
  - url: >-
      https://github.com/Budibase/budibase/security/advisories/GHSA-pmpg-2mxq-6xwr
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/budibase-before-nosql-injection-via-mongodb-datasource
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-14T18:02:48.644110Z'
epss: 0.00343
epssPercentile: 0.25717
ingestedAt: '2026-10-08T16:52:14.715Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.