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CVE-2026-67311— Budibase before 3.38.1 SSRF Blacklist Bypass via HTTP Redirect

Quick assessment

Affected
Budibase budibase
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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公司开源的一个用于在几分钟内创建内部应用程序、工作流和管理面板的低代码平台。 Budibase 3.38.1之前版本存在服务端请求伪造漏洞，该漏洞源于REST数据源集成未针对IP黑名单验证HTTP重定向，可能导致具有Builder角色的攻击者通过配置指向外部服务器的REST数据源，利用重定向绕过黑名单保护，访问云元数据端点和内部服务。

CVSS 6.8 · Medium EPSS 0.42% · P33

Affected Version Matrix 2

VendorProduct Version RangeStatus
Budibase budibase < 3.38.1 affected
3.38.1 unaffected
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I. Basic Information for CVE-2026-67311

Vulnerability Information
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Vulnerability Title
Budibase before 3.38.1 SSRF Blacklist Bypass via HTTP Redirect
Source: CVE Program / CVE List V5
Vulnerability Description
Budibase before 3.38.1 contains a server-side request forgery vulnerability in the REST datasource integration that fails to validate HTTP redirects against the IP blacklist. Attackers with Builder role can configure a REST datasource pointing to an external server that returns a redirect to internal IP addresses, bypassing blacklist protection to access cloud metadata endpoints and internal services.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/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公司开源的一个用于在几分钟内创建内部应用程序、工作流和管理面板的低代码平台。 Budibase 3.38.1之前版本存在服务端请求伪造漏洞，该漏洞源于REST数据源集成未针对IP黑名单验证HTTP重定向，可能导致具有Builder角色的攻击者通过配置指向外部服务器的REST数据源，利用重定向绕过黑名单保护，访问云元数据端点和内部服务。
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 budibase 0 ~ 3.38.1 -

II. Public POCs for CVE-2026-67311

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III. Intelligence Information for CVE-2026-67311

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Vendor Advisories for CVE-2026-67311 (1)

Vendor Pages for CVE-2026-67311 (1)

IV. Related Vulnerabilities

Same product: budibase
Same vendor: Budibase
Same weakness: CWE-918

V. Comments for CVE-2026-67311

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