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CVE-2026-72857— Budibase before 3.40.0 Credential Exposure via STRING Fields

Quick assessment

Affected
Budibase budibase
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公司开源的一个低代码应用开发平台。 Budibase 3.40.0之前版本存在信任管理问题漏洞，该漏洞源于STRING类型字段中存储的数据源凭据未进行脱敏，经过身份验证的用户可通过读取API读取MongoDB连接字符串和Firebase私钥明文，具有表读取权限的攻击者可获取后端数据库凭据和服务账户密钥。

CVSS 7.7 · High EPSS 0.35% · P27

Affected Version Matrix 2

VendorProduct Version RangeStatus
Budibase budibase < 3.40.0 affected
3.40.0 unaffected
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I. Basic Information for CVE-2026-72857

Vulnerability Information
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Vulnerability Title
Budibase before 3.40.0 Credential Exposure via STRING Fields
Source: CVE Program / CVE List V5
Vulnerability Description
Budibase before 3.40.0 fails to redact datasource credentials stored in STRING typed fields, allowing authenticated users to read MongoDB connection strings and Firebase private keys in plaintext. Attackers with table read permissions can retrieve datasource configurations through the read API to obtain live backend database credentials and service account keys.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5
Vulnerability Title
Budibase 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Budibase是英国Budibase公司开源的一个低代码应用开发平台。 Budibase 3.40.0之前版本存在信任管理问题漏洞，该漏洞源于STRING类型字段中存储的数据源凭据未进行脱敏，经过身份验证的用户可通过读取API读取MongoDB连接字符串和Firebase私钥明文，具有表读取权限的攻击者可获取后端数据库凭据和服务账户密钥。
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 budibase 0 ~ 3.40.0 -

II. Public POCs for CVE-2026-72857

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
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Qwen3.6-35B-A3B · 7156 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Trigger conditions & impact
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POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-72857

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Vendor Advisories for CVE-2026-72857 (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-2026-72849 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-2026-73617 7.1 HIGH Budibase before 3.40.0 NoSQL Injection via MongoDB datasource
CVE-2026-73304 4.9 MEDIUM Budibase: SSO OAuth2 Token Leakage via User Metadata Endpoints to Power-Role Users

IV. Related Vulnerabilities

Same product: budibase
Same vendor: Budibase
Same weakness: CWE-522

V. Comments for CVE-2026-72857

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