CVE-2026-11400 and CVE-2026-11401 - Privilege Escalation in Aurora PostgreSQL using AWS Advanced JDBC Wrapper, AWS Advanced Go Wrapper Bulletin ID: 2026-039-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 06/05/2026 12:15 PM PDT Description: Amazon Aurora PostgreSQL a fully managed relational database engine that's compatible with PostgreSQL. We identified CVE-2026-11400(JDBC) and CVE-2026-11401(Go), an issue in AWS Wrappers for Amazon Aurora PostgreSQL will allow for privilege escalation to rds_superuser role. A low privilege authenticated user can create a crafted function that could be executed with permissions of other Amazon Relational Database Service (RDS) users. Impacted versions: AWS Advanced JDBC Wrapper >=3.0.0 and < 4.0.1 AWS Advanced Go Wrapper…