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OpenAdvisories
High · 8.5 CVE-2026-72855 EUVD-2026-58504GHSA-9x7q-v2pf-x72vGHSA-xg5g-26x8-cvf4

Budibase before 3.40.0 DNS Rebinding SSRF via OpenAPI and REST

Published Aug 13, 2026 · Updated Oct 8, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
budibase server < 3.40.0 3.40.0

Affected packages

EcosystemPackageAffectedFixedRecord
npm @budibase/server <= 3.38.1 — GHSA-xg5g-26x8-cvf4

References