kysely-org kysely up to 0.28.13 CreateViewBuilder.as sanitizeStringLiteral sql injection

Summaryinfo

A vulnerability was found in kysely-org kysely up to 0.28.13. It has been classified as critical. This issue affects the function sanitizeStringLiteral of the file CreateViewBuilder.as. The manipulation leads to sql injection. This vulnerability is uniquely identified as CVE-2026-33468. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in kysely-org kysely up to 0.28.13 and classified as critical. This issue affects the function sanitizeStringLiteral of the file CreateViewBuilder.as. The manipulation with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Kysely is a type-safe TypeScript SQL query builder. Prior to version 0.28.14, Kysely's `DefaultQueryCompiler.sanitizeStringLiteral()` only escapes single quotes by doubling them (`'` → `''`) but does not escape backslashes. When used with the MySQL dialect (where `NO_BACKSLASH_ESCAPES` is OFF by default), an attacker can use a backslash to escape the trailing quote of a string literal, breaking out of the string context and injecting arbitrary SQL. This affects any code path that uses `ImmediateValueTransformer` to inline values — specifically `CreateIndexBuilder.where()` and `CreateViewBuilder.as()`. Version 0.28.14 contains a fix.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-33468 since 03/20/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

Upgrading to version 0.28.14 eliminates this vulnerability.

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Productinfo

Vendor

• kysely-org

Name

• kysely

Version

• 0.28.0
• 0.28.1
• 0.28.2
• 0.28.3
• 0.28.4
• 0.28.5
• 0.28.6
• 0.28.7
• 0.28.8
• 0.28.9
• 0.28.10
• 0.28.11
• 0.28.12
• 0.28.13

Website

• Product: https://github.com/kysely-org/kysely/

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