GHSA-8CPQ-38P9-67GX Kysely has a MySQL SQL Injection via Insufficient Backslash Escaping in `sql.lit(string)` usage or similar methods that append string literal values into the compiled SQL strings

Summary Kysely's DefaultQueryCompiler.sanitizeStringLiteral only escapes single quotes by doubling them ' → '' but does not escape backslashes. When used with the MySQL dialect where NOBACKSLASHESCAPES is OFF by default, an attacker can use a backslash to escape the trailing quote of a string...

Kysely has a MySQL SQL Injection via Backslash Escape Bypass in non-type-safe usage of JSON path keys.

Summary The sanitizeStringLiteral method in Kysely's query compiler escapes single quotes ' → '' but does not escape backslashes. On MySQL with the default BACKSLASHESCAPES SQL mode, an attacker can inject a backslash before a single quote to neutralize the escaping, breaking out of the JSON path...

PT-2026-26762

Name of the Vulnerable Software and Affected Versions Kysely versions prior to 0.28.14 Description Kysely's DefaultQueryCompiler.sanitizeStringLiteral function inadequately escapes backslashes when handling string literals. Specifically, it only doubles single quotes but does not address...