CVE-2026-11400

High

Description

An untrusted search path issue in the GlobalDatabasePlugin in the AWS Advanced JDBC Wrapper for Amazon Aurora PostgreSQL will allow a remote authenticated low-privilege actor to escalate privileges to those of another Amazon RDS user, including rds_superuser, via a crafted function created by the actor that runs when that user connects to the cluster through an affected wrapper. To remediate this issue, users should upgrade to AWS Advanced JDBC Wrapper version 4.0.1.

SeverityHigh

CVSS8.0

Exploit probability—

ProductSoftware.amazon.jdbc:aws-advanced-jdbc-wrapper

PublishedJun 5, 2026

First seenJun 5, 2026

Weakness typeCWE-426CWE-426

How to fix

Update

software.amazon.jdbc:aws-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/2026-039-aws/

Affected products

Product	Affected versions	Fixed in
software.amazon.jdbc:aws-advanced-jdbc-wrapperMaven	3.0.0 ≤ v < 4.0.1	4.0.1

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