Vulnerability · Published Jul 1, 2026 · Assigned by AMZN

CVE-2026-14265RCE via Deserialization in AWS Advanced JDBC Wrapper

High 7.5

In plain English

A high-severity unsafe deserialization in AWS Advanced JDBC Wrapper from AWS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.7%top 45.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
AWS	AWS Advanced JDBC Wrapper	3.3.0 – through 4.0.0

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.0.1 patch
https://aws.amazon.com/security/security-bulletins/2026-051-aws/ vendor-advisory
https://github.com/aws/aws-advanced-jdbc-wrapper/security/advisories/GHSA-c5q4-97jw-jggh third-party-advisory