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Vulnerability record · CVE-2026-45716 · published 27 May 2026

CVE-2026-45716: Improper privilege management vulnerability

Budibase is an open-source low-code platform. Prior to 3.38.1, the POST /api/global/users/onboard endpoint is protected by workspaceBuilderOrAdmin middleware, allowing any user with builder permissions to access it. When SMTP email is not configured (the default for self-hosted Budibase instances), this endpoint bypasses the admin-restricted invite flow and directly creates users via bulkCreate, accepting arbitrary admin and builder role assignments from the request body. A builder-level user can create a new global admin account and receive the generated password in the response, achieving full privilege escalation. This vulnerability is fixed in 3.38.1.

8.8 CVSS 3.1 High EPSS 0.47% · top 61.9% CWE-269 · Improper privilege management Deferred
8.8CVSS 3.1 base score
0.47%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Budibase is an open-source low-code platform. Prior to 3.38.1, the POST /api/global/users/onboard endpoint is protected by workspaceBuilderOrAdmin middleware, allowing any user with builder permissions to access it. When SMTP email is not configured (the default for self-hosted Budibase instances), this endpoint bypasses the admin-restricted invite flow and directly creates users via bulkCreate, accepting arbitrary admin and builder role assignments from the request body. A builder-level user can create a new global admin account and receive the generated password in the response, achieving full privilege escalation. This vulnerability is fixed in 3.38.1.

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

References

LinkTags
https://github.com/Budibase/budibase/releases/tag/3.38.1
https://github.com/Budibase/budibase/security/advisories/GHSA-c54j-xp92-wh28
https://github.com/Budibase/budibase/security/advisories/GHSA-c54j-xp92-wh28

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Source: NIST National Vulnerability Database (record CVE-2026-45716), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.