CVE-2022-21724: Debian Linux

Critical severity, CVSS 9.8. EPSS: 3.1% chance of exploitation in the next 30 days.

pgjdbc is the offical PostgreSQL JDBC Driver. A security hole was found in the jdbc driver for postgresql database while doing security research. The system using the postgresql library will be attacked when attacker control the jdbc url or properties. pgjdbc instantiates plugin instances based on class names provided via `authenticationPluginClassName`, `sslhostnameverifier`, `socketFactory`, `sslfactory`, `sslpasswordcallback` connection properties. However, the driver did not verify if the class implements the expected interface before instantiating the class. This can lead to code execution loaded via arbitrary classes. Users using plugins are advised to upgrade. There are no known workarounds for this issue.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 35 only
• PostgreSQL PostgreSQL Jdbc Driver: before 42.2.25 (fixed in 42.2.25); from 42.3.0, before 42.3.2 (fixed in 42.3.2); version 42.3.2 only
• Quarkus Quarkus: before 2.7.2 (fixed in 2.7.2)

Published 2022-02-02. Last modified 2026-06-17.