CVE-2026-100683: server 0 to before 3.45.0

Affected technology

server · 0 to before 3.45.0
budibase

Description’s affected range: before 3.45.0 builds MySQL and MSSQL column-rename DDL in packages/backend-core/src/sql/sqlTable.ts by interpolating identifiers directly into a raw query string (backtick-quoted for MySQL

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · Passive user interaction

What an attacker can do

An attacker with DDL rights on a connected MySQL/MSSQL datasource can create a column whose name contains a backtick (MySQL) or single quote (MSSQL) plus additional SQL; Budibase's schema introspection stores the name verbatim, and when a Budibase builder later renames that column through the UI (POST /api/tables with _rename.old), the embedded quote character terminates the identifier and the injected SQL is executed. Vendor/CNA’s CVSS 4.0 assessment (base score 8.9/10) rates confidentiality, integrity and availability impact as high.