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

Published Aug 13, 2026
·
Updated

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 Software

1 affected component
budibase Budibase<3.40.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Budibase to a version that resolves this vulnerability.

    Fixed in 3.40.0

Event History

Aug 13, 2026
CVE Published
via MITRE·09:54 PM
Data Sourced
via MITRE·09:54 PM
DescriptionSeverityWeakness
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