CVE-2026-33442Public exploitNetwork attack vector

SQL injection via incomplete backslash escaping

Published Mar 26, 2026 · Updated Mar 26, 2026

SQL injection in Kysely 0.28.12 through 0.28.13 allows remote attackers to execute arbitrary SQL through crafted JSON path keys. DefaultQueryCompiler.visitJSONPathLeg passes each key to sanitizeStringLiteral, which doubles single quotes but leaves backslashes unescaped before embedding the result in a MySQL string literal. Exposure requires a consuming application to pass attacker-controlled keys through non-type-safe JSON path APIs while MySQL or MariaDB uses backslash escapes; injected SQL can read data available to the database account and can alter or delete data when that account has write access.

CVSS severity8.1
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Kysely 0.28.12 through 0.28.13 allows remote attackers to execute arbitrary SQL through crafted JSON path keys. DefaultQueryCompiler.visitJSONPathLeg passes each key to sanitizeStringLiteral, which doubles single quotes but leaves backslashes unescaped before embedding the result in a MySQL string literal. Exposure requires a consuming application to pass attacker-controlled keys through non-type-safe JSON path APIs while MySQL or MariaDB uses backslash escapes; injected SQL can read data available to the database account and can alter or delete data when that account has write access.

The record

CVE
CVE-2026-33442
Published
Mar 26, 2026
Updated
Mar 26, 2026
Vendor
Kysely
Product
Kysely
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 0.28.12, < 0.28.14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kysely · Kyselyversion=>= 0.28.12, < 0.28.14

Published CVSS scores

8.1GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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