CVE-2026-73306

MEDIUM 5.3

Budibase: Account Enumeration via Login Lockout Response Differential

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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	CWE-204
Vendor	budibase
Product	budibase
Published	Aug 12, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

Budibase / budibase

< 3.39.25

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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