Budibase: Account Enumeration via Login Lockout Response Differential

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-73306
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 20:17:54 UTC
Updated2026-08-12 20:17:54 UTC
DescriptionBudibase 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

Problem Types: CWE-204 | CWE-204 CWE-204: Observable Response Discrepancy

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Budibase Budibase affected < 3.39.25 Not specified

References

ReferenceSourceLinkTags
github.com/Budibase/budibase/releases/tag/3.39.25 [email protected] github.com
github.com/Budibase/budibase/commit/eaae816ab81615c07eb10e4619af078d00e2... [email protected] github.com
github.com/Budibase/budibase/pull/19108 [email protected] github.com
github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm [email protected] github.com
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