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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/kysely-org/kysely/security/advisories/GHSA-fr9j-6mvq-frcv	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:kysely:kysely:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-03-26 17:16

Updated : 2026-06-17 10:37

NVD link : CVE-2026-33442

Mitre link : CVE-2026-33442

CVE.ORG link : CVE-2026-33442

JSON object : View

Products Affected

kysely

kysely

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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