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

{
    "lastseen": "",
    "description": "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 (`'` \u2192 `''`) 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": "2026-03-26T17:01:57.866Z",
    "modified": "2026-03-26T18:47:53.070Z",
    "type": "cve",
    "title": "Kysely has a MySQL SQL Injection via Backslash Escape Bypass in non-type-safe usage of JSON path keys.",
    "source": "GitHub_M",
    "references": "https://github.com/kysely-org/kysely/security/advisories/GHSA-fr9j-6mvq-frcv",
    "id": "CVE-2026-33442",
    "bulletinFamily": "",
    "cwe": [
        "CWE-89"
    ],
    "cvelist": null,
    "sourceData": "kysely-org kysely >= 0.28.12, < 0.28.14",
    "sourceHref": "",
    "cvss": {
        "score": 8.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "kysely",
    "version": ">= 0.28.12, < 0.28.14",
    "vendor": "kysely-org",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
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    "ai_score": 0
}