Vulnerabilities in pkg:maven/software.amazon.jdbc/aws-advanced-jdbc-wrapper

PACKAGE
Advisory Identifier: GHSA-mhww-p97m-3368
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Advisory Summary

CVE-2026-11400 is a HIGH (CVSS 8.0) privilege escalation vulnerability (CWE-426: Untrusted Search Path) affecting AWS-JDBC Wrapper libraries in the Maven ecosystem. The issue involves privilege escalation in aurora postgresql instance. Remediation is available by upgrading affected packages to version 4.0.1.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/software.amazon.jdbc/aws-advanced-jdbc-wrapper

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/software.amazon.jdbc/aws-advanced-jdbc-wrapper. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-mhww-p97m-3368 CVE-2026-11400 HIGH AWS-JDBC Wrapper: Privilege Escalation in Aurora PostgreSQL instance
GHSA-7xw4-g7mm-r4hh - HIGH Amazon Web Services Advanced JDBC Wrapper: Privilege Escalation in Aurora PostgreSQL instance

CVE-2026-11400 at a Glance

CVE Identifier CVE-2026-11400
GHSA Identifier GHSA-mhww-p97m-3368
Severity HIGH
CVSS v3.1 Base Score 8.0
CWE Classification CWE-426: Untrusted Search Path
Affected Product AWS-JDBC Wrapper
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-11400

To remediate this vulnerability, upgrade all affected AWS-JDBC Wrapper dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

software.amazon.jdbc:aws-advanced-jdbc-wrapper fixed: 4.0.1 
<dependency>
    <groupId>software.amazon.jdbc</groupId>
    <artifactId>aws-advanced-jdbc-wrapper</artifactId>
    <version>4.0.1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=software.amazon.jdbc

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-11400, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=software.amazon.jdbc

Analyze the terminal output to locate any version of AWS-JDBC Wrapper in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.0.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=software.amazon.jdbc command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-426: Untrusted Search Path, where the product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. In AWS-JDBC Wrapper, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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 [aws-security@amazon.com](mailto:aws-security@amazon.com). 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.

CVE-2026-11400 Affected AWS-JDBC Wrapper Versions

1 component(s)
Fixed Versions:
4.0.1
Product / Package Ecosystem Affected Versions Fixed Version
software.amazon.jdbc:aws-advanced-jdbc-wrapper
maven/software.amazon.jdbc/aws-advanced-jdbc-wrapper
Maven
≥ 3.0.0
< 4.0.1
4.0.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/aws/aws-advanced-jdbc-wrapper/security/advisories/GHSA-mhww-p97m-3368
NVD — CVE-2026-11400 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-11400
AWS-JDBC Wrapper Security Information SECURITY
https://aws.amazon.com/security/security-bulletins/2026-039-aws
AWS-JDBC Wrapper Source Repository REPOSITORY
https://github.com/aws/aws-advanced-jdbc-wrapper
AWS-JDBC Wrapper Release RELEASE
https://github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.0.1
CVE Official Record — CVE-2026-11400 CVE
https://www.cve.org/cverecord?id=CVE-2026-11400

Frequently Asked Questions

What is CVE-2026-11400?
CVE-2026-11400 is a security vulnerability in AWS-JDBC Wrapper involving Privilege Escalation in Aurora PostgreSQL instance under CWE-426: Untrusted Search Path.
Which AWS-JDBC Wrapper versions are affected?
Affected versions include releases prior to 4.0.1 across affected packages: software.amazon.jdbc:aws-advanced-jdbc-wrapper.
What version fixes CVE-2026-11400?
Upgrading to 4.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is aws-advanced-jdbc-wrapper affected?
Yes, software.amazon.jdbc:aws-advanced-jdbc-wrapper is affected in releases prior to 4.0.1. Upgrade your dependency to 4.0.1 or later.
What is the CVSS score of CVE-2026-11400?
CVE-2026-11400 has a CVSS v3.1 base score of 8.0 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-11400?
CVE-2026-11400 is classified under CWE-426: Untrusted Search Path (The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control.).
How can I check Maven dependencies for CVE-2026-11400?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=software.amazon.jdbc'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mhww-p97m-3368",
  "modified" : "2026-07-17T18:40:41Z",
  "published" : "2026-07-17T18:40:41Z",
  "aliases" : [ "CVE-2026-11400" ],
  "summary" : "AWS-JDBC Wrapper: Privilege Escalation in Aurora PostgreSQL instance",
  "details" : "Aurora PostgreSQL is a fully managed relational database engine that's compatible with PostgreSQL.\n\nThe team has identified CVE-2026-11400, an issue in Aurora PostgreSQL using the AWS Advanced JDBC Wrapper\n\n\nImpact\nAn 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.\n\nImpacted versions: AWS Advanced JDBC Wrapper >= 3.0.0 and  < 4.0.1\n\nPatches\nThis 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. \n\nWorkarounds\nRemove the public schema from the search path.\n\nResources\nIf 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 [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.\n\nAcknowledgement \n\nAWS-JDBC Wrapper would like to thank [x.com/ph0smet](http://x.com/ph0smet) for collaborating on this issue through the coordinated vulnerability disclosure process.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "software.amazon.jdbc:aws-advanced-jdbc-wrapper"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "4.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/aws/aws-advanced-jdbc-wrapper/security/advisories/GHSA-mhww-p97m-3368"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-11400"
  }, {
    "type" : "WEB",
    "url" : "https://aws.amazon.com/security/security-bulletins/2026-039-aws"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/aws/aws-advanced-jdbc-wrapper"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.0.1"
  }, {
    "type" : "WEB",
    "url" : "https://www.cve.org/cverecord?id=CVE-2026-11400"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-426" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-17T18:40:41Z",
    "nvd_published_at" : "2026-06-05T20:17:28Z"
  }
}