Medium 5.3Published Aug 12, 2026

CVE-2026-73306Budibase: Account Enumeration via Login Lockout Response Differential

Updated under an hour ago (2026-10-19 06:50 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-204
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Budibase budibase budibase:budibase (from the name)	before 3.39.25	CNA record

References

https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cmx-refsource-confirm
https://github.com/Budibase/budibase/pull/19108x-refsource-misc
https://github.com/Budibase/budibase/commit/eaae816ab81615c07eb10e4619af078d00e2a706x-refsource-misc
https://github.com/Budibase/budibase/releases/tag/3.39.25x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.