CVE-2026-100684

Budibase versions 3.41.0 before 3.45.0 contain an authentication bypass in the OIDC/SSO login path of @budibase/server. In sso.authenticate, when no existing user matches the incoming SSO subject, the server looks up pending user invites by the IdP-asserted email address alone — without validating an invite code and without an email_verified check (the email_verified gate protects only the existing-account lookup). An attacker who can register at an IdP that the tenant trusts for OIDC and assert a victim's invited email address (even with email_verified=false) claims the pending invite and inherits all of its granted privileges, including builder and admin.global, with no admin exclusion. This results in takeover of the invited principal and, for admin invites, full tenant compromise (access to all apps, datasources including production credentials, and automations); the invite is consumed, denying onboarding to the legitimate invitee.

• CWE-287

• https://github.com/Budibase/budibase/security/advisories/GHSA-35ch-57g2-3g98
• https://www.vulncheck.com/advisories/budibase-server-3.41.0-before-3.45.0-authentication-bypass-via-oidc

Published

Sep 26, 2026

Last Modified

Sep 26, 2026

Status

Received

• 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-2026-100679stoatchat before 0.15.5 fails to validate that MFA tickets b…8.8
• CVE-2026-10068A flaw has been found in Shibby Tomato 1.28. The affected el…7.3
• CVE-2026-100680Budibase versions before 3.45.0 fail to disable external JSO…8.1
• CVE-2026-100681Budibase before 3.45.0 contains an unauthenticated server-si…5.4
• CVE-2026-100682Budibase Server before 3.45.0 contains an arbitrary file wri…8.8
• CVE-2026-100683Budibase (@budibase/server) before 3.45.0 builds MySQL and M…8
• CVE-2026-100685Budibase before 3.45.0 fails to properly scope the GET /api/…7.7
• CVE-2026-100686Budibase versions before 3.45.0 fail to validate per-app aut…8.1
• CVE-2026-100687Budibase Server before 3.45.0 fails to redact plaintext data…5.5
• CVE-2026-100688Budibase server before 3.45.0 contains a cross-tenant inform…6.5
• CVE-2026-100689GitPython before 3.1.62 does not validate the `path` field r…5.9
• CVE-2026-10069A vulnerability has been found in Shibby Tomato 1.28. The im…8.7