High severity8.1NVD Advisory· Published Mar 26, 2026· Updated Jun 17, 2026
CVE-2026-33442
CVE-2026-33442
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
kyselynpm | >= 0.28.12, < 0.28.14 | 0.28.14 |
Affected products
2Patches
Vulnerability mechanics
References
3- github.com/kysely-org/kysely/security/advisories/GHSA-fr9j-6mvq-frcvnvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-fr9j-6mvq-frcvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33442ghsaADVISORY
News mentions
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