CVE-2026-33442
March 26, 2026
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.
Affected Packages
kysely (NPM):
Affected version(s) >=0.28.12 <0.28.14Fix Suggestion:
Update to version 0.28.14Related Resources (3)
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Contact UsCVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
EPSS
Base Score:
0.05
