CVE-2026-32763
Description
Kysely is a type-safe TypeScript SQL query builder. Versions up to and including 0.28.11 has a SQL injection vulnerability in JSON path compilation for MySQL and SQLite dialects. The `visitJSONPathLeg()` function appends user-controlled values from `.key()` and `.at()` directly into single-quoted JSON path string literals (`'$.key'`) without escaping single quotes. An attacker can break out of the JSON path string context and inject arbitrary SQL. This is inconsistent with `sanitizeIdentifier()`, which properly doubles delimiter characters for identifiers — both are non-parameterizable SQL constructs requiring manual escaping, but only identifiers are protected. Version 0.28.12 fixes the issue.
How to fix
- kysely kysely0.28.12 or later
- kysely0.28.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| kysely kysely | 0.26.0 ≤ v < 0.28.12 | 0.28.12 |
| kyselynpm | 0.26.0 ≤ v < 0.28.12 | 0.28.12 |
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