CVE-2026-31816

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.

• CWE-74

• https://github.com/Budibase/budibase/security/advisories/GHSA-gw94-hprh-4wj8Exploit, Vendor Advisory
• https://github.com/Budibase/budibase/security/advisories/GHSA-gw94-hprh-4wj8Exploit, Vendor Advisory

Published

Mar 9, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-31809SiYuan is a personal knowledge management system. Prior to 3…6.1
• CVE-2026-3181Rejected reason: This CVE ID has been rejected or withdrawn …
• CVE-2026-31812Quinn is a pure-Rust, async-compatible implementation of the…8.7
• CVE-2026-31813Supabase Auth is a JWT based API for managing users and issu…4.8
• CVE-2026-31814Yamux is a stream multiplexer over reliable, ordered connect…7.5
• CVE-2026-31815Unicorn adds modern reactive component functionality to your…5.3
• CVE-2026-31817OliveTin gives access to predefined shell commands from a we…8.5
• CVE-2026-31818Budibase is an open-source low-code platform. Prior to versi…9.9
• CVE-2026-31819Sylius is an Open Source eCommerce Framework on Symfony. Cur…6.1
• CVE-2026-3182Zohocorp ManageEngine Endpoint Central versions before 11.4.…4.3
• CVE-2026-31820Sylius is an Open Source eCommerce Framework on Symfony. An …6.5
• CVE-2026-31821Sylius is an Open Source eCommerce Framework on Symfony. The…5.3