SQL Injection via unsanitized JSON path keys when ignoring/silencing compilation errors or using `Kysely<any>`.

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Summary

CVECVE-2026-32763
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-20 00:16:17 UTC
Updated2026-04-08 20:57:45 UTC
DescriptionKysely is a type-safe TypeScript SQL query builder. Versions up to and including 0.28.11 has a SQL injection vulnerability in JSON path compilation for MySQL and SQLite dialects. The `visitJSONPathLeg()` function appends user-controlled values from `.key()` and `.at()` directly into single-quoted JSON path string literals (`'$.key'`) without escaping single quotes. An attacker can break out of the JSON path string context and inject arbitrary SQL. This is inconsistent with `sanitizeIdentifier()`, which properly doubles delimiter characters for identifiers — both are non-parameterizable SQL constructs requiring manual escaping, but only identifiers are protected. Version 0.28.12 fixes the issue.

Risk And Classification

Primary CVSS: v3.1 8.2 HIGH from [email protected]

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

EPSS: 0.000160000 probability, percentile 0.036630000 (date 2026-04-13)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
3.1CNADECLARED8.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Kysely Kysely All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Kysely-org Kysely affected >= 0.26.0, < 0.28.12 Not specified

References

ReferenceSourceLinkTags
github.com/kysely-org/kysely/releases/tag/v0.28.12 [email protected] github.com Release Notes
github.com/kysely-org/kysely/commit/0a602bff2f442f6c26d5e047ca8f8715179f... [email protected] github.com Patch
github.com/kysely-org/kysely/security/advisories/GHSA-wmrf-hv6w-mr66 [email protected] github.com Exploit, Mitigation, Vendor Advisory
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