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Back to active CVEs
High · CVSS 8.6CVE-2026-11400GHSA-MHWW-P97M-3368

Privilege Escalation in AWS Advanced JDBC Wrapper for Amazon Aurora PostgreSQLCVE-2026-11400

Answer in brief

CVE-2026-11400 records a High severity (CVSS 8.6) vulnerability in Privilege Escalation in AWS Advanced JDBC Wrapper for Amazon Aurora PostgreSQL. The current sources do not mark it as known exploited. The current feed maps AWS/AWS Advanced JDBC Wrapper (generic), software.amazon.jdbc:aws-advanced-jdbc-wrapper (maven), software.amazon.jdbc:aws-advanced-jdbc-wrapper (maven). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 5, 2026Updated Oct 20, 2026Source checked Oct 20, 2026First seen by HOL Jul 17, 2026Material review Oct 20, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.6
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps AWS/AWS Advanced JDBC Wrapper (generic), software.amazon.jdbc:aws-advanced-jdbc-wrapper (maven), software.amazon.jdbc:aws-advanced-jdbc-wrapper (maven). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
AWS/AWS Advanced JDBC Wrappergeneric>=3.0.0 <4.0.14.0.1
software.amazon.jdbc:aws-advanced-jdbc-wrappermaven>=3.0.0,<4.0.14.0.1
software.amazon.jdbc:aws-advanced-jdbc-wrappermaven>=3.0.0 <4.0.14.0.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for AWS/AWS Advanced JDBC Wrapper, software.amazon.jdbc:aws-advanced-jdbc-wrapper, software.amazon.jdbc:aws-advanced-jdbc-wrapper.
  2. 2Review the reported fix. Update AWS/AWS Advanced JDBC Wrapper to 4.0.1; software.amazon.jdbc:aws-advanced-jdbc-wrapper to 4.0.1; 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.

Evidence timeline and material changes

  1. Published upstream

    Jun 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jul 17, 2026

Sources and claim methodology

  • Source referenceaws.amazon.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referenceaws.amazon.com
  • GitHub security advisorygithub.com
  • NVD vulnerability recordnvd.nist.gov
  • Source referencecve.org
  • GitHub security advisorygithub.com
Upstream source description

An untrusted search path issue in the GlobalDatabasePlugin in the AWS Advanced JDBC Wrapper for Amazon Aurora PostgreSQL will allow a remote authenticated low-privilege actor to escalate privileges to those of another Amazon RDS user, including rds_superuser, via a crafted function created by the actor that runs when that user connects to the cluster through an affected wrapper. To remediate this issue, users should upgrade to AWS Advanced JDBC Wrapper version 4.0.1.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Privilege Escalation
EPSS
Not reported
CWE IDs
CWE-426
Source
CVE List V5
Source checked
Oct 20, 2026
References
8 linked sources
Open source record