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Vulnerability record · CVE-2026-73406 · published 12 August 2026

CVE-2026-73406: Information exposure vulnerability

Budibase is an open-source low-code platform. Prior to 3.39.32, GET /api/global/users/tenant/:id was listed in PUBLIC_ENDPOINTS in packages/worker/src/api/index.ts, and tenantUserLookup returned a full PlatformUser document. An unauthenticated caller could query an email or user identifier, distinguish existing users from missing users, and obtain tenant identifiers, user identifiers, email addresses, SSO identifiers, and document revision metadata. This issue is fixed in version 3.39.32.

7.5 CVSS 3.1 High EPSS 0.51% · top 59.0% CWE-200 · Information exposure Deferred
7.5CVSS 3.1 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
8 Sep 2026Last modified by NVD

Description

Budibase is an open-source low-code platform. Prior to 3.39.32, GET /api/global/users/tenant/:id was listed in PUBLIC_ENDPOINTS in packages/worker/src/api/index.ts, and tenantUserLookup returned a full PlatformUser document. An unauthenticated caller could query an email or user identifier, distinguish existing users from missing users, and obtain tenant identifiers, user identifiers, email addresses, SSO identifiers, and document revision metadata. This issue is fixed in version 3.39.32.

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

References

LinkTags
https://github.com/Budibase/budibase/commit/0bdf648ff4c024a138a546ef84217e4efbee538e
https://github.com/Budibase/budibase/pull/19221
https://github.com/Budibase/budibase/releases/tag/3.39.32
https://github.com/Budibase/budibase/security/advisories/GHSA-hr66-5mqr-8mpx
https://github.com/Budibase/budibase/security/advisories/GHSA-hr66-5mqr-8mpx

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Source: NIST National Vulnerability Database (record CVE-2026-73406), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.