Aurora PostgreSQL is a fully managed relational database engine that's compatible with PostgreSQL. The team has identified CVE-2026-11400, an issue in Aurora PostgreSQL using the AWS Advanced JDBC Wrapper Impact 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 Patches This issue has been addressed in AWS JDBC Wrapper v4.0.1. It is recommended to upgrade to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes. Workarounds Remove the public schema from the search path. Resources If there are any questions or comments about this advisory, contact [AWS/Amazon] Security via [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [[email protected]](mailto:[email protected]). Please do not create a public GitHub issue. Acknowledgement AWS-JDBC Wrapper would like to thank [x.com/ph0smet](http://x.com/ph0smet) for collaborating on this issue through the coordinated vulnerability disclosure process.
Aurora PostgreSQL is a fully managed relational database engine that's compatible with PostgreSQL. The team has identified CVE-2026-11400, an issue in Aurora PostgreSQL using the AWS Advanced JDBC Wrapper Impact 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 Patches This issue has been addressed in AWS JDBC Wrapper v4.0.1. It is recommended to upgrade to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes. Workarounds Remove the public schema from the search path. Resources If there are any questions or comments about this advisory, contact [AWS/Amazon] Security via [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [[email protected]](mailto:[email protected]). Please do not create a public GitHub issue. Acknowledgement AWS-JDBC Wrapper would like to thank [x.com/ph0smet](http://x.com/ph0smet) for collaborating on this issue through the coordinated vulnerability disclosure process.
Update software.amazon.jdbc:aws-advanced-jdbc-wrapper to 4.0.1 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanAWS-JDBC Wrapper: Privilege Escalation in Aurora PostgreSQL instance affects software.amazon.jdbc:aws-advanced-jdbc-wrapper (maven). Severity is high. Aurora PostgreSQL is a fully managed relational database engine that's compatible with PostgreSQL. The team has identified CVE-2026-11400, an issue in Aurora PostgreSQL using the AWS Advanced JDBC Wrapper Impact 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 Patches This issue has been addressed in AWS JDBC Wrapper v4.0.1. It is recommended to upgrade to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes. Workarounds Remove the public schema from the search path. Resources If there are any questions or comments about this advisory, contact [AWS/Amazon] Security via [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [[email protected]](mailto:[email protected]). Please do not create a public GitHub issue. Acknowledgement AWS-JDBC Wrapper would like to thank [x.com/ph0smet](http://x.com/ph0smet) for collaborating on this issue through the coordinated vulnerability disclosure process.
AI coding agents often install or upgrade packages automatically in maven. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| software.amazon.jdbc:aws-advanced-jdbc-wrappermaven | >=3.0.0,<4.0.1 | 4.0.1 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL GuardUpdate software.amazon.jdbc:aws-advanced-jdbc-wrapper to 4.0.1 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanAWS-JDBC Wrapper: Privilege Escalation in Aurora PostgreSQL instance affects software.amazon.jdbc:aws-advanced-jdbc-wrapper (maven). Severity is high. Aurora PostgreSQL is a fully managed relational database engine that's compatible with PostgreSQL. The team has identified CVE-2026-11400, an issue in Aurora PostgreSQL using the AWS Advanced JDBC Wrapper Impact 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 Patches This issue has been addressed in AWS JDBC Wrapper v4.0.1. It is recommended to upgrade to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes. Workarounds Remove the public schema from the search path. Resources If there are any questions or comments about this advisory, contact [AWS/Amazon] Security via [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [[email protected]](mailto:[email protected]). Please do not create a public GitHub issue. Acknowledgement AWS-JDBC Wrapper would like to thank [x.com/ph0smet](http://x.com/ph0smet) for collaborating on this issue through the coordinated vulnerability disclosure process.
AI coding agents often install or upgrade packages automatically in maven. A high vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| software.amazon.jdbc:aws-advanced-jdbc-wrappermaven | >=3.0.0,<4.0.1 | 4.0.1 |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard