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CVE-2026-11400

Privilege Escalation in AWS Advanced JDBC Wrapper for Amazon Aurora PostgreSQL

Published: Jun 5, 2026Updated: Jun 5, 2026 Sources: CVE List NVDCWE-426
NVD MITRE
8.0CVSSHIGH
EPSS Score
0.3%
Top 78.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-426

Affected Products

AWS Advanced JDBC WrapperAWS
Mixed
Cloud & SaaS / cloud-platform
awscommercialUSCloud & SaaSaka aws

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Persistence
View detailed technique mapping

References

https://aws.amazon.com/security/security-bulletins/2026-039-aws/
aws.amazon.com
https://github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.0.1
github.com
https://www.cve.org/cverecord?id=CVE-2026-11400
cve.org

Timeline

Published
Jun 5, 2026
Last Updated
Jun 5, 2026

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