CVE-2026-11400: AWS Advanced JDBC Wrapper privilege escalation in GlobalDatabasePlugin

CVE-2026-11400 · Severity: high · CVSS 8 · Published 2026-06-05

AWS Aurora PostgreSQL databases can be compromised through privilege escalation vulnerabilities in the Advanced JDBC Wrapper and Advanced Go Wrapper libraries. An attacker who gains access to a database connection can escalate their privileges to gain unauthorized access to sensitive data or perform unauthorized administrative operations, potentially affecting the confidentiality and integrity of customer databases.

Technologies: Amazon AWS. Vendors: Amazon, Amazon Web Services, Maven.

Quick answers

Is CVE-2026-11400 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-11400 being exploited in the wild.
How severe is CVE-2026-11400?
High severity, with a CVSS score of 8, published 5 June 2026.
Which products and versions are affected?
Amazon Aurora PostgreSQL <UNKNOWN>; Amazon AWS Advanced Go Wrapper <UNKNOWN>; Amazon AWS Advanced JDBC Wrapper <UNKNOWN>; Amazon Web Services Advanced JDBC Wrapper >= 3.0.0, < 4.0.1; and 2 more.
Is there a fix for CVE-2026-11400?
Yes. software.amazon.jdbc:aws-advanced-jdbc-wrapper (Maven): upgrade to 4.0.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-11400 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-11400?
Check whether you run Amazon Aurora PostgreSQL, Amazon AWS, Amazon AWS Advanced Go Wrapper or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • software.amazon.jdbc:aws-advanced-jdbc-wrapper (Maven): upgrade to 4.0.1 or later
    # set software.amazon.jdbc:aws-advanced-jdbc-wrapper to 4.0.1 in your pom.xml or build.gradle

Technical details

These vulnerabilities exist in AWS Advanced JDBC Wrapper and Advanced Go Wrapper libraries used to connect to Aurora PostgreSQL databases. The vulnerabilities enable privilege escalation, allowing an attacker who has established a database connection to escalate their user privileges beyond their intended authorization level. Attack preconditions require the attacker to have initial access to establish a database connection. The specific root cause and vulnerable components are not detailed in the available reference material. AWS has issued security advisories (CVE-2026-11400 and CVE-2026-11401) addressing these issues. Patches or mitigations should be obtained from the AWS security bulletins.

Affected products

  • Amazon Web Services Aurora PostgreSQL <UNKNOWN>
  • Amazon Web Services AWS Advanced JDBC Wrapper <UNKNOWN>
  • Amazon Web Services AWS Advanced Go Wrapper <UNKNOWN>

Identifiers

  • CVE-2026-11400
  • GHSA-mhww-p97m-3368

Timeline

  • 2026-09-22: disclosed: Vulnerability disclosed via AWS security bulletin

References

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