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9.1
Budibase Server API Endpoints Can Be Accessed Without Authentication
CVE-2026-31816
Summary
Budibase server-side API endpoints in versions 3.31.4 and earlier can be accessed without authentication, allowing unauthorized access to sensitive data and functions. This is a security risk because it allows attackers to bypass login checks and access internal tools and workflows. To fix this, update to version 3.31.5 or later.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| budibase | budibase | <= 3.31.4 | – |
Original title
Budibase is a low code platform for creating internal tools, workflows, and admin panels. In 3.31.4 and earlier, the Budibase server's authorized() middleware that protects every server-side API en...
Original description
Budibase is a low code platform for creating internal tools, workflows, and admin panels. In 3.31.4 and earlier, the Budibase server's authorized() middleware that protects every server-side API endpoint can be completely bypassed by appending a webhook path pattern to the query string of any request. The isWebhookEndpoint() function uses an unanchored regex that tests against ctx.request.url, which in Koa includes the full URL with query parameters. When the regex matches, the authorized() middleware immediately calls return next(), skipping all authentication, authorization, role checks, and CSRF protection. This means a completely unauthenticated, remote attacker can access any server-side API endpoint by simply appending ?/webhooks/trigger (or any webhook pattern variant) to the URL.
nvd CVSS3.1
9.1
Vulnerability type
CWE-74
Injection
Published: 9 Mar 2026 · Updated: 13 Mar 2026 · First seen: 9 Mar 2026