Kysely is a type-safe TypeScript SQL query builder. Prior to version 0.28.14, Kysely's DefaultQueryCompiler.sanitizeStringLiteral() only escapes single quotes by doubling them (' → '') but does not escape backslashes. When used with the MySQL dialect (where NO_BACKSLASH_ESCAPES is OFF by default), an attacker can use a backslash to escape the trailing quote of a string literal, breaking out of the string context and injecting arbitrary SQL. This affects any code path that uses ImmediateValueTransformer to inline values — specifically CreateIndexBuilder.where() and CreateViewBuilder.as(). Version 0.28.14 contains a fix.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-89"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33468.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "0.28.14"
}
],
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
],
"cpe": "cpe:2.3:a:kysely:kysely:*:*:*:*:*:node.js:*:*"
}