CVE-2024-36039

A flaw was found in PyMySQL. When processing untrusted JSON input, keys are not escaped by the escape_dict function due to insufficient input sanitization, allowing an attacker to inject malicious SQL queries.

Applications not exposed to untrusted JSON input are not vulnerable to this issue. Additionally, exploitation of this vulnerability depends on the permissions granted to the database user, limiting the security impact. For this reason, this flaw was rated with a Moderate severity.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Make sure the permissions are set correctly for each user, database, table, operation, etc. Do not expose the PyMySQL library to untrusted JSON input.