Budibase server before 3.45.0 Cross-Tenant Information Disclosure
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA server (budibase) Fixed in 3.45.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
budibase server 3.45.0
9 records Highest priority Priority HIGH 6 HIGH, 2 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-64840 Budibase Server 3.41.0 before 3.45.0 Authentication Bypass via OIDCPriority HIGH 75
- TI-2026-64839 Budibase before 3.45.0 SQL Injection via column-rename DDLPriority HIGH 74
- TI-2026-64838 Budibase Server before 3.45.0 Arbitrary File Write via ZIP SymlinkPriority HIGH 73
Timeline
- 2026-10-02 Threatist record created from CVE-2026-100688
- 2026-10-03 Alias added: GHSA-x59p-xj2h-33r8
References
More Budibase vulnerabilities
- TI-2026-39242 Budibase: Anonymous NoSQL operator injection via published-app query templates CVSS 3.1CRITICAL 10.0
- TI-2026-51076 Budibase before 3.40.0 SQL Injection via Unauthenticated Webhook CVSS 4.0CRITICAL 9.0
- TI-2026-24369 Budibase Universal Auth Bypass via Webhook Query Param Injection CVSS 3.1CRITICAL 9.1
- TI-2026-56709 Budibase before 3.41.3 Remote Code Execution via Plugin eval() CVSS 4.0CRITICAL 9.4
- TI-2026-51425 Budibase: SQL Injection via `multipleStatements: true` CVSS 3.1CRITICAL 9.6
- TI-2026-51075 Budibase before 3.40.0 Arbitrary File Write via Path Traversal CVSS 4.0CRITICAL 9.4
Sources
- CVE-2026-100688 · CVE Program
- CVE-2026-100688 · NVD
- FIRST EPSS
- GHSA-x59p-xj2h-33r8 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences