SQL Injection in Kysely
CVE-2026-32763
Kysely 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.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
- Kysely
- Kysely-Org Kysely — versions >= 0.26.0, < 0.28.12
Weakness classification (CWE)
References
- github.com/kysely-org/kysely/security/advisories/GHSA-wmrf-hv6w-mr66 (Exploit, Mitigation, Vendor Advisory)
- github.com/kysely-org/kysely/commit/0a602bff2f442f6c26d5e047ca8f8715179f6d24 (Patch)
- github.com/kysely-org/kysely/releases/tag/v0.28.12 (Release Notes)
Frequently asked questions
- What is CVE-2026-32763?
- CVE-2026-32763 is a high-severity vulnerability in Kysely, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-03-20.
- How severe is CVE-2026-32763?
- High severity. CVSS v3 base score is 8.2 out of 10.