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CVE-2026-35219— Budibase: SSRF in Automation Steps - Webhook, Zapier, N8N, Slack, Discord Bypass IP Blacklist

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 3.41.3之前版本存在服务端请求伪造漏洞，该漏洞源于自动化步骤对用户提供的URL使用node-fetch且未执行BLACKLIST_IPS限制，可能导致已认证用户向云元数据和内部服务发起服务端请求。

CVSS 7.1 · High EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle

Affected Version Matrix 1

VendorProduct Version RangeStatus
Budibase budibase < 3.41.3 affected
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I. Basic Information for CVE-2026-35219

Vulnerability Information
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Vulnerability Title
Budibase: SSRF in Automation Steps - Webhook, Zapier, N8N, Slack, Discord Bypass IP Blacklist
Source: CVE Program / CVE List V5
Vulnerability Description
Budibase is an open-source low-code platform. Prior to 3.41.3, automation steps in packages/server/src/automations/steps/outgoingWebhook.ts, packages/server/src/automations/steps/zapier.ts, packages/server/src/automations/steps/n8n.ts, packages/server/src/automations/steps/slack.ts, and packages/server/src/automations/steps/discord.ts use node-fetch on user-provided URLs without the BLACKLIST_IPS enforcement used by the REST integration, allowing an authenticated user to make server-side requests to cloud metadata and internal services. This issue is fixed in version 3.41.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA: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 3.41.3之前版本存在服务端请求伪造漏洞，该漏洞源于自动化步骤对用户提供的URL使用node-fetch且未执行BLACKLIST_IPS限制，可能导致已认证用户向云元数据和内部服务发起服务端请求。
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 < 3.41.3 -

II. Public POCs for CVE-2026-35219

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 16471 chars
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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
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III. Intelligence Information for CVE-2026-35219

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Patches & Fixes for CVE-2026-35219 (2)

Vendor Advisories for CVE-2026-35219 (1)

Vendor Pages for CVE-2026-35219 (1)

Same Patch Batch · Budibase · 2026-08-17 · 4 CVEs total

CVE-2026-73410 8.5 HIGH Budibase: SSRF via DNS rebinding in the REST datasource integration
CVE-2026-64657 8.4 HIGH Budibase: Database Connector SQL Injections in PostgreSQL, MS SQL, and MySQL
CVE-2026-54356 7.1 HIGH Budibase authenticated arbitrary S3 signed upload URL issuance via `/api/attachments/:data

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-35219

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