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Critical · 9.0 CVE-2026-73302 EUVD-2026-58525GHSA-hp6v-6jw7-gv2f

Budibase: OIDC SSO account takeover: incoming identity linked by email without checking email_verified

Published Aug 13, 2026 · Updated Aug 14, 2026 · Assigned by GitHub_M

Description

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

VendorProductAffectedFixed
Budibase budibase < 3.39.30 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @budibase/server <= 3.38.1 — GHSA-hp6v-6jw7-gv2f

References