NocoDB: Postgres SQL Injection in Formula `ARRAYSORT`

NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, an authenticated user with columnAdd permission on a Postgres-backed base can inject arbitrary SQL into the formula engine via the optional direction argument of ARRAYSORT(...). The value is unrestricted by formula validation and embedded into a knex.raw ORDER BY clause, executing during column creation and on every subsequent record read of the formula column. The vulnerability is specific to the Postgres mapping for ARRAYSORT in packages/nocodb/src/db/functionMappings/pg.ts. This vulnerability is fixed in 2026.04.1.