CVE-2026-100688 Budibase server before 3.45.0 Cross-Tenant Information Disclosure
Authenticated users can access other tenants' application metadata and source code via an insecure direct object reference in the Budibase server API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100688?
CVE-2026-100688 is a high-severity vulnerability in budibase server, published on 26 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Budibase server before 3.45.0 contains a cross-tenant information disclosure vulnerability in the GET /api/applications/:appId/appPackage endpoint that allows authenticated users to read another tenant's application metadata and source code. Attackers can supply a victim tenant's app id to retrieve sensitive application details including navigation structure, role names, internal screen URLs, JavaScript snippets, and user identifiers without authorization checks.
Weakness: CWE-639
Which versions are affected by CVE-2026-100688?
How do I fix CVE-2026-100688?
No fix has been published for CVE-2026-100688 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-100688 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100688 exists.
Sources
Also known as GHSA-4946-qf2m-wrh5, GHSA-x59p-xj2h-33r8.