CVE-2026-100683 Budibase before 3.45.0 SQL Injection via column-rename DDL
Attacker with DDL rights can inject SQL via column rename, bypassing permissions to read or modify database data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-100683?
CVE-2026-100683 is a high-severity SQL injection vulnerability in budibase server, published on 26 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Budibase (@budibase/server) 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, a single-quoted sp_rename literal for MSSQL) without applying the project's quoteMySqlIdentifier / quoteSqlServerIdentifier helpers. 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. Because the MySQL connection is opened with multipleStatements: true, stacked statements run as Budibase's datasource user, allowing arbitrary reads, writes, or destructive operations on the connected database outside Budibase's row/table permission model. Fixed in 3.45.0.
Weakness: CWE-89
Which versions are affected by CVE-2026-100683?
How do I fix CVE-2026-100683?
No fix has been published for CVE-2026-100683 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-100683 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100683 exists.
Sources
Also known as GHSA-8mm2-5qwq-x6xp, GHSA-ppj8-hmx2-m546.