CVE-2026-33442 | BDVDB-2026-323211 Detail

kysely-orgkysely

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 (`'` → `''`) 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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

References#

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

Exploit#

No public exploit known

History#

Version 12026-03-26Record published in the CVE List.

Published

Published: 2026-03-26
Last modified: 2026-03-26

Vendor information

Vendor: kysely-org
Product: kysely

All kysely-org vulnerabilities

Score

8.1 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 39.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

SQL Injection

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 0.28.12, < 0.28.14
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.1 High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).