GHSA-mhww-p97m-3368
HIGHGHSA-mhww-p97m-3368 is a high-severity (CVSS 8) CWE-426 vulnerability in software.amazon.jdbc:aws-advanced-jdbc-wrapper. O3 Security confirms whether GHSA-mhww-p97m-3368 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
AWS-JDBC Wrapper: Privilege Escalation in Aurora PostgreSQL instance
Real-World Exposure
software.amazon.jdbc:aws-advanced-jdbc-wrapperReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
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 or directly via email to [email protected]. Please do not create a public GitHub issue.
Acknowledgement
AWS-JDBC Wrapper would like to thank x.com/ph0smet for collaborating on this issue through the coordinated vulnerability disclosure process.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | software.amazon.jdbc:aws-advanced-jdbc-wrapper | ≥ 3.0.0&&< 4.0.1 | 4.0.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for software.amazon.jdbc:aws-advanced-jdbc-wrapper. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update software.amazon.jdbc:aws-advanced-jdbc-wrapper to 4.0.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mhww-p97m-3368 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-mhww-p97m-3368 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-mhww-p97m-3368. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-mhww-p97m-3368 in your dependencies?
O3 detects GHSA-mhww-p97m-3368 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.