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TI-2026-51427 Aliases CVE-2026-73302GHSA-hp6v-6jw7-gv2f

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

Priority HIGH 74CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00427 37th percentileScored 2026-11-07
Fix Fixed budibase (Budibase): 3.39.30

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Budibasebudibasebefore 3.39.303.39.30Patch availableCNA
—@budibase/server (npm)up to 3.38.1—No fix listedGHSA-hp6v-6jw7-gv2f
  • budibase VendorBudibase Affected before 3.39.30 Fixed in 3.39.30 Patch available CNA
  • @budibase/server (npm) Vendor— Affected up to 3.38.1 Fixed in — No fix listed GHSA-hp6v-6jw7-gv2f

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:budibase:budibase:*:*:*:*:*:*:*:*——Budibase
  • cpe:2.3:a:budibase:budibase:*:*:*:*:*:*:*:* Versions — — ·Budibase

Remediation

  • Fix · CNA budibase (Budibase) Fixed in 3.39.30

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73302
  2. 2026-10-03 Alias added: GHSA-hp6v-6jw7-gv2f

References

Other 5

  • TI-2026-39242 Budibase: Anonymous NoSQL operator injection via published-app query templates CVSS 3.1CRITICAL 10.0
  • TI-2026-51076 Budibase before 3.40.0 SQL Injection via Unauthenticated Webhook CVSS 4.0CRITICAL 9.0
  • TI-2026-24369 Budibase Universal Auth Bypass via Webhook Query Param Injection CVSS 3.1CRITICAL 9.1
  • TI-2026-56709 Budibase before 3.41.3 Remote Code Execution via Plugin eval() CVSS 4.0CRITICAL 9.4
  • TI-2026-51425 Budibase: SQL Injection via `multipleStatements: true` CVSS 3.1CRITICAL 9.6
  • TI-2026-51075 Budibase before 3.40.0 Arbitrary File Write via Path Traversal CVSS 4.0CRITICAL 9.4
See all 90 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences