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Budibase server before 3.45.0 Cross-Tenant Information Disclosure

Priority MEDIUM 64CWE-639Published · Updated

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

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00331 26th percentileScored 2026-11-07
Fix Fixed server (budibase): 3.45.0

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

VendorProductAffected versionsFixed inStatusSource
Budibaseserverbefore 3.45.03.45.0Patch availableCNA
  • server VendorBudibase Affected before 3.45.0 Fixed in 3.45.0 Patch available CNA

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

  1. 2026-10-02 Threatist record created from CVE-2026-100688
  2. 2026-10-03 Alias added: GHSA-x59p-xj2h-33r8

References

  • 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
See all 90 →

Sources