Vulnerability · Published Mar 19, 2026 · Assigned by GitHub_M
CVE-2026-32763SQL Injection via unsanitized JSON path keys when ignoring/silencing compilation errors or using `Kysely<any>`.
High 8.2
In plain English
A high-severity SQL injection in kysely from kysely-org. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | kysely | 0.28.12 | GHSA-wmrf-hv6w-mr66 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| kysely-org | kysely | >= 0.26.0, < 0.28.12 |
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N