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

August 14, 2026

Budibase automation steps (outgoing webhook, Zapier, n8n, Slack, Discord, Make.com) make server-side HTTP requests to user-provided URLs using node-fetch directly, completely bypassing the IP blacklist protection that exists in the REST API integration. Additionally, the REST API blacklist itself defaults to empty when BLACKLIST_IPS is not configured.

References

github.com/Budibase/budibase/releases/tag/3.41.3
github.com/Budibase/budibase/security/advisories/GHSA-5fpj-28rv-84r7
github.com/advisories/GHSA-5fpj-28rv-84r7
nvd.nist.gov/vuln/detail/CVE-2026-35219

Code Behaviors & Features

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