CVE-2026-73302: Budibase

Critical severity, CVSS 9.0. EPSS: 0.4% chance of exploitation in the next 30 days.

Budibase is an open-source low-code platform. Prior to 3.39.30, the OIDC flow in packages/backend-core/src/middleware/passport/sso/oidc.ts resolved an email without getEmailVerified or an email_verified requirement, and packages/backend-core/src/middleware/passport/sso/sso.ts then used users.getGlobalUserByEmail as a fallback account-linking key. An attacker who can authenticate through a configured identity provider that asserts a victim email as unverified can have a fresh provider identity merged into the victim Budibase account and inherit the victim roles. This issue is fixed in version 3.39.30.

Affected products

• Budibase Budibase: before 3.39.30 (fixed in 3.39.30)

Published 2026-08-13. Last modified 2026-09-08.