What is CVE-2026-44635?

CVE-2026-44635 is a high-severity vulnerability in Kysely-org Kysely, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-05-27.

How severe is CVE-2026-44635?

High severity. CVSS v3 base score is 7.5 out of 10.

SQL Injection in Kysely-org Kysely

CVE-2026-44635

Kysely is a type-safe TypeScript SQL query builder. From 0.26.0 to 0.28.16, DefaultQueryCompiler.visitJSONPathLeg does not escape JSON-path metacharacters (., [, ], *, **, ?). When attacker-controlled input flows into eb.ref(col, '->$').ke…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (17.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Kysely-org Kysely — versions >= 0.26.0, < 0.28.17

Weakness classification (CWE)

CWE-22 — Path Traversal
CWE-89 — SQL Injection
CWE-915 — Improperly Controlled Modification of Dynamically-Determined Object Attributes
CWE-1284 — Improper Validation of Specified Quantity in Input

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-44635?: CVE-2026-44635 is a high-severity vulnerability in Kysely-org Kysely, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-05-27.
How severe is CVE-2026-44635?: High severity. CVSS v3 base score is 7.5 out of 10.