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    CVE-2026-33442

    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.

    Published:Mar 26, 2026
    Last Modified:Apr 2, 2026
    EPS:Mar 26, 2026
    EPSS Score:0.00065
    CVSS Score:8.1

    Affected Products

    Vendor
    Kysely
    Product
    Kysely
    Vendor
    Kysely-org
    Product
    Kysely

    Exploits

    https://github.com/kysely-org/kysely/security/advisories/GHSA-fr9j-6mvq-frcv

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High