CVE-2026-14265- Deserialization of Untrusted Data in AWS Advanced JDBC Wrapper RemoteQueryCachePlugin
Bulletin ID: 2026-051-AWS
Scope: AWS
Content Type: Important (requires attention)
Publication Date: 07/01/2026 12:45 PM PDT
Description:
The AWS Advanced JDBC Wrapper is an open-source JDBC driver wrapper that extends a JDBC driver to enable Amazon Aurora and AWS Cloud features such as failover handling and caching. We identified CVE-2026-14265, an issue in the RemoteQueryCachePlugin of the AWS Advanced JDBC Wrapper. When this plugin is enabled, query results read from the shared Redis/Valkey cache are deserialized without class filtering. An actor with write access to the shared cache infrastructure could insert a crafted serialized Java object that, when read by an application, results in execution of arbitrary code on the application server.
Impacted versions: >=3.3.0 AND <=4.0.0
Resolution:
This issue has been addressed in AWS Advanced JDBC Wrapper version 4.0.1. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.
Workarounds:
The RemoteQueryCachePlugin is not enabled by default. Customers who cannot immediately upgrade can mitigate this issue by disabling the RemoteQueryCachePlugin, and by restricting write access to the Redis/Valkey cache infrastructure to trusted principals.
References:
Please email aws-security@amazon.com with any security questions or concerns.