CVE-2026-100688

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductBudibase Server

PublishedSep 26, 2026

First seenSep 26, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

budibase server3.45.0 or later

Vendor advisories

github.com/Budibase/budibase/security/advisories/GHSA-4946-qf2m-wrh5

Affected products

Product	Affected versions	Fixed in
budibase server	v < 3.45.0	3.45.0

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