CVE-2026-14265

High

Description

Deserialization of untrusted data in the RemoteQueryCachePlugin in Amazon Web Services AWS Advanced JDBC Wrapper 3.3.0 through 4.0.0 might allow an actor with write access to the shared cache infrastructure to execute arbitrary code on application servers that read cached query results via a crafted serialized Java object. The RemoteQueryCachePlugin uses ObjectInputStream without class filtering when deserializing cached query results from Redis or Valkey, enabling gadget chain execution when cache entries are poisoned. We recommend upgrading to AWS Advanced JDBC Wrapper version 4.0.1 or later.

SeverityHigh

CVSS7.5

Exploit probability—

ProductAmazon Advanced Jdbc Wrapper

PublishedJul 1, 2026

First seenJul 1, 2026

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

amazon advanced_jdbc_wrapper4.0.1 or later

Patches

github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.0.1

Vendor advisories

aws.amazon.com/security/security-bulletins/2026-051-aws/

Affected products

Product	Affected versions	Fixed in
amazon advanced_jdbc_wrapper	3.3.0 ≤ v < 4.0.1	4.0.1

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