CVE-2026-73302
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 9.0 CRITICALCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.40% probability · 33th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Source
- security-advisories@github.com
References
- https://github.com/Budibase/budibase/commit/9ecd0048d9c3ae0ee9bd0e6204c621794dd1a4d3
- https://github.com/Budibase/budibase/pull/19173
- https://github.com/Budibase/budibase/releases/tag/3.39.30
- https://github.com/Budibase/budibase/security/advisories/GHSA-hp6v-6jw7-gv2f
- https://github.com/Budibase/budibase/security/advisories/GHSA-hp6v-6jw7-gv2f
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.