CVE-2020-13936: Apache Velocity Engine
High severity, CVSS 8.8. EPSS: 22.7% chance of exploitation in the next 30 days.
An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system commands with the same privileges as the account running the Servlet container. This applies to applications that allow untrusted users to upload/modify velocity templates running Apache Velocity Engine versions up to 2.2.
Affected products
- Apache Velocity Engine: before 2.3 (fixed in 2.3)
- Apache WSS4J: version 2.3.1 only
- Debian Debian Linux: version 9.0 only
- Oracle Banking Deposits And Lines Of Credit Servicing: version 2.12.0 only
- Oracle Banking Enterprise Default Management: from 2.3.0, up to and including 2.4.1; version 2.6.2 only; version 2.7.1 only; version 2.10.0 only; version 2.12.0 only
- Oracle Banking Loans Servicing: version 2.12.0 only
- Oracle Banking Party Management: version 2.7.0 only
- Oracle Banking Platform: from 2.3.0, up to and including 2.4.1; version 2.6.2 only; version 2.7.1 only
- Oracle Communications Cloud Native Core Policy: version 1.14.0 only
- Oracle Communications Network Integrity: version 7.3.6 only
- Oracle Hospitality Token Proxy Service: version 19.2 only
- Oracle Retail Integration Bus: version 19.0.1 only
- Oracle Retail Order Broker: version 16.0 only
- Oracle Retail Service Backbone: version 19.0.1 only
- Oracle Retail Xstore Office Cloud Service: version 16.0.6 only; version 17.0.4 only; version 18.0.3 only; version 19.0.2 only; version 20.0.1 only
- Oracle Utilities Testing Accelerator: version 6.0.0.1.1 only; version 6.0.0.2.2 only; version 6.0.0.3.1 only
Published 2021-03-10. Last modified 2026-06-17.