Live › vulnerability › CVE-2026-18061
Go to dashboardThe AWS Advanced JDBC Wrapper's optional RemoteQueryCachePlugin parses cached XML values with external entities resolved. An actor who can write to a shared cache can read files the application process can read, including stored database and IAM role credentials.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-24 19:12 UTC, 0h before NVD. All times on this page are UTC.
Only applications that use the AWS Advanced JDBC Wrapper between and and have the optional RemoteQueryCachePlugin enabled with a shared cache are exposed. The risk depends on who can write to that cache, so teams with a private or single-tenant cache have less exposure. Teams on or later, or not using the plugin, can skip it.
3.3.04.2.04.3.0| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| amazon advanced jdbc wrapper | vendor | >= 3.3.0, < 4.3.0 | 4.3.0 |
>= 3.3.0 and <= 4.2.0.RemoteQueryCachePlugin or the plugin name in the connection properties; the plugin is off by default.4.3.0.RemoteQueryCachePlugin or restrict write access to the shared cache to trusted principals only.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
CVE-2026-18061 - XML External Entity (XXE) in AWS Advanced JDBC Wrapper RemoteQueryCachePlugin
Bulletin ID: 2026-109-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 09/11/2026 09:30 AM PDT
Description:
The AWS Advanced JDBC Wrapper is an open-source library that enhances existing JDBC drivers with AWS-specific capabilities such as Aurora failover, IAM authentication, and automated SQL query caching for applications connecting to Amazon Aurora, RDS MySQL, and RDS MariaDB.
We identified CVE-2026-18061, an improper restriction of XML external entity (XXE) references in the optional RemoteQueryCachePlugin. When this plugin is enabled with a shared cache, an actor with write access to that cache infrastructure might place crafted XML in a cached column value. When an application subsequently reads that cached result as XML, the wrapper's XML parsers resolve external entities, which might allow the actor to disclose sensitive files readable by the application process, including stored database and IAM role credentials.
Impacted versions: >= 3.3.0 and <= 4.2.0
Resolution:
This issue has been addressed in AWS Advanced JDBC Wrapper version 4.3.0. 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 not enabling the RemoteQueryCachePlugin, or by restricting write access to the shared cache so that only trusted principals can write to it.
References:
Please email [email protected] with any security questions or concerns.
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