High 8.8Published Aug 13, 2026

CVE-2026-73305Budibase: Privilege escalation via public role assignment API missing app-level authorization

Updated under an hour ago (2026-10-19 07:00 UTC)

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It affects budibase. Add what you run to find out whether that includes you.

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 3.39.24, POST /api/public/v1/roles/assign called validateGlobalRoleUpdate without checking appBuilder.appId or role.appId in packages/server/src/api/controllers/public/globalRoleValidation.ts. An app-scoped builder could scope the request to an app they control and then grant themselves builder access or an arbitrary role in another app, exposing that app data, datasource configuration, and automations. This issue is fixed in version 3.39.24.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-269, CWE-862, CWE-863
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 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Budibase budibase budibase:budibase (from the name)	before 3.39.24	CNA record

References

https://github.com/Budibase/budibase/security/advisories/GHSA-j9fc-w3mr-x6mvx-refsource-confirm
https://github.com/Budibase/budibase/pull/19098x-refsource-misc
https://github.com/Budibase/budibase/commit/453391d3245dd04cc386ccd6959d38ccf30db9a8x-refsource-misc
https://github.com/Budibase/budibase/releases/tag/3.39.24x-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.