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CVE-2026-72855— Budibase before 3.40.0 DNS Rebinding SSRF via OpenAPI and REST

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公司开源的一个低代码应用开发平台。 Budibase 3.40.0之前版本存在服务端请求伪造漏洞，该漏洞源于OpenAPI查询导入和REST查询执行中的服务端请求伪造漏洞，可能允许已认证的构建者级别用户通过DNS重绑定攻击绕过DNS固定保护，访问被阻止的内部HTTP服务。

CVSS 8.5 · High EPSS 0.38% · P29

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-2026-72855

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Budibase before 3.40.0 DNS Rebinding SSRF via OpenAPI and REST
Source: CVE Program / CVE List V5
Vulnerability Description
Budibase before 3.40.0 contains server-side request forgery vulnerabilities in OpenAPI query import and REST query execution that allow authenticated builder-level users to bypass DNS pinning protections through DNS rebinding attacks. Attackers can configure hostnames that resolve to public addresses during validation but resolve to loopback or private addresses during actual connection, allowing access to blocked internal HTTP services.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Budibase 服务端请求伪造漏洞
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之前版本存在服务端请求伪造漏洞，该漏洞源于OpenAPI查询导入和REST查询执行中的服务端请求伪造漏洞，可能允许已认证的构建者级别用户通过DNS重绑定攻击绕过DNS固定保护，访问被阻止的内部HTTP服务。
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-2026-72855

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7593 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-72855

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Vendor Advisories for CVE-2026-72855 (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-2026-73618 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-2026-73617 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: server
Same vendor: budibase
Same weakness: CWE-918

V. Comments for CVE-2026-72855

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