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

Quick assessment

Affected
budibase server
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Budibase是英国Budibase公司开源的一款低代码应用构建平台。 Budibase 3.40.0之前版本存在输入验证错误漏洞，该漏洞源于MongoDB数据源集成中用户提供的参数经handlebars处理且未进行操作符过滤，可能导致攻击者注入MongoDB操作符，绕过访问控制、读取任意文档、通过$where操作符执行JavaScript或修改集合。

CVSS 7.1 · High EPSS 0.34% · P25

Affected Version Matrix 2

VendorProduct Version RangeStatus
budibase server < 3.40.0 affected
3.40.0 unaffected
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I. Basic Information for CVE-2026-73617

Vulnerability Information
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Vulnerability Title
Budibase before 3.40.0 NoSQL Injection via MongoDB datasource
Source: CVE Program / CVE List V5
Vulnerability 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 $where operators, or modify collections through update and delete operations.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
数据查询逻辑中特殊元素的不当中和
Source: CVE Program / CVE List V5
Vulnerability Title
Budibase 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Budibase是英国Budibase公司开源的一款低代码应用构建平台。 Budibase 3.40.0之前版本存在输入验证错误漏洞，该漏洞源于MongoDB数据源集成中用户提供的参数经handlebars处理且未进行操作符过滤，可能导致攻击者注入MongoDB操作符，绕过访问控制、读取任意文档、通过$where操作符执行JavaScript或修改集合。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
budibase server 0 ~ 3.40.0 -

II. Public POCs for CVE-2026-73617

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8948 chars
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Trigger conditions & impact
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Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-73617

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Vendor Advisories for CVE-2026-73617 (2)

Same Patch Batch · budibase · 2026-08-13 · 13 CVEs total

CVE-2026-72851 10.0 CRITICAL Budibase before 3.40.0 SQL Injection via Unauthenticated Webhook
CVE-2026-72850 9.1 CRITICAL Budibase before 3.40.0 Arbitrary File Write via Path Traversal
CVE-2026-73302 9.0 CRITICAL Budibase: OIDC SSO account takeover: incoming identity linked by email without checking em
CVE-2026-73305 8.8 HIGH Budibase: Privilege escalation via public role assignment API missing app-level authorizat
CVE-2026-72855 8.5 HIGH Budibase before 3.40.0 DNS Rebinding SSRF via OpenAPI and REST
CVE-2026-73618 8.3 HIGH Budibase Server before 3.40.0 NoSQL Injection via JSON Parameter
CVE-2026-72856 8.1 HIGH Budibase before 3.40.0 Authentication Bypass via Tenant Owner Email
CVE-2026-72857 7.7 HIGH Budibase before 3.40.0 Credential Exposure via STRING Fields
CVE-2026-72849 7.7 HIGH Budibase before 3.40.0 Identity Confusion via Chat-Link Handoff CSRF
CVE-2026-72853 7.6 HIGH Budibase before 3.40.0 SQL Injection via Oracle connector
CVE-2026-73408 7.6 HIGH Budibase: MySQL DESCRIBE Backtick Injection via multipleStatements in Database Connector
CVE-2026-73304 4.9 MEDIUM Budibase: SSO OAuth2 Token Leakage via User Metadata Endpoints to Power-Role Users

IV. Related Vulnerabilities

Same product: server
Same vendor: budibase
Same weakness: CWE-943

V. Comments for CVE-2026-73617

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