CVE-2026-73306

Budibase is an open-source low-code platform. Prior to 3.39.25, POST /api/global/auth/:tenantId/login incremented the failure counter in packages/worker/src/api/controllers/global/auth.ts only for existing users, while packages/worker/src/middleware/emailLockout.ts returned X-Account-Locked and Retry-After only for locked identifiers. An unauthenticated attacker could compare the response after repeated failures to enumerate valid email addresses and temporarily lock valid accounts. This issue is fixed in version 3.39.25.

• CWE-204

• https://github.com/Budibase/budibase/commit/eaae816ab81615c07eb10e4619af078d00e2a706
• https://github.com/Budibase/budibase/pull/19108
• https://github.com/Budibase/budibase/releases/tag/3.39.25
• https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm
• https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm

Published

Aug 12, 2026

Last Modified

Aug 13, 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.
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