Budibase before 3.45.0 Cross-Workspace Privilege Escalation via POST /api/global/groups/:groupId/apps
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-269.
Summary
Budibase versions before 3.45.0 fail to validate per-app authorization in the POST /api/global/groups/:groupId/apps endpoint, allowing builders to assign application roles across workspace boundaries. A builder of a single workspace can exploit missing per-app authorization checks to grant themselves admin roles in other workspaces by modifying user group role mappings.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
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-2026-100686
- 2026-10-03 Alias added: GHSA-9mjc-4gf6-xhx7
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-2026-100686 · CVE Program
- CVE-2026-100686 · NVD
- FIRST EPSS
- GHSA-9mjc-4gf6-xhx7 · GitHub Advisory Database · CC BY 4.0
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