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CVE-2026-33442

CVE-2026-33442 · Kysely has a MySQL SQL Injection via Backslash Escape Bypass in non-type-safe usage of JSON path keys.

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Kysely is a type-safe TypeScript SQL query builder. In versions 0.28.12 and 0.28.13, the `sanitizeStringLiteral` method in Kysely's query compiler escapes single quotes (`'` → `''`) but does not escape backslashes. On MySQL with the default `BACKSLASH_ESCAPES` SQL mode, an attacker can inject a backslash before a single quote to neutralize the escaping, breaking out of the JSON path string literal and injecting arbitrary SQL. Version 0.28.14 fixes the issue.

CVSS 8.1 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • kysely

    Versions
    • >= 0.28.12, < 0.28.14: Affected

    No fix published

  • kysely npm

    Affected ranges
    • SEMVER: ≥ 0.28.12, < 0.28.14

    Update to 0.28.14

Original sources

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