CVE-2026-46374: Sqlfluff

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

SQLFluff is a modular SQL linter and auto-formatter with support for multiple dialects and templated code. Prior to version 4.2.0, in deployments where untrusted users can provide SQL queries to be linted, an untrusted user can submit a malicious long query to any application using the parser to trigger a Denial of Service through resource exhaustion. This issue has been patched in version 4.2.0.

Affected products

• Sqlfluff Sqlfluff: before 4.2.0 (fixed in 4.2.0)

Published 2026-06-09. Last modified 2026-07-23.