TI-2026-09837 Aliases CVE-2026-11400 GHSA-mhww-p97m-3368

Privilege Escalation in AWS Advanced JDBC Wrapper for Amazon Aurora PostgreSQL

MEDIUM 40CWE-426Published 2026-06-05 · Updated 2026-10-20

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-426.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00496 42nd percentileScored 2026-11-07

Fix Fixed AWS Advanced JDBC Wrapper (AWS): 4.0.1software.amazon.jdbc:aws-advanced-jdbc-wrapper (Maven): 4.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
AWS	AWS Advanced JDBC Wrapper	3.0.0 to before 4.0.1	4.0.1	Patch available	CNA
—	software.amazon.jdbc:aws-advanced-jdbc-wrapper (Maven)	3.0.0 to before 4.0.1	4.0.1	Patch available	GHSA-mhww-p97m-3368

AWS Advanced JDBC Wrapper VendorAWS Affected 3.0.0 to before 4.0.1 Fixed in 4.0.1 Patch available CNA
software.amazon.jdbc:aws-advanced-jdbc-wrapper (Maven) Vendor— Affected 3.0.0 to before 4.0.1 Fixed in 4.0.1 Patch available GHSA-mhww-p97m-3368

Remediation

Fix · CNA AWS Advanced JDBC Wrapper (AWS) Fixed in 4.0.1
Fix · GHSA-mhww-p97m-3368 software.amazon.jdbc:aws-advanced-jdbc-wrapper (Maven) Fixed in 4.0.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-11400
2026-10-03 Alias added: GHSA-mhww-p97m-3368
2026-10-20 1 new reference · CNA
2026-10-25 Priority changed: LOW → MEDIUM

References

Patch 1

https://github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.0.1

Advisory 3

Other 3

TI-2026-23989 crypto: algif_aead - Revert to operating out-of-place KEVCVSS 3.1HIGH 7.8
TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
TI-2024-18648 Amazon AWS Amplify CLI before 12.10.1 incorrectly configures the role trust policy of IAM… CVSS 3.1CRITICAL 9.8
TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
TI-2025-03847 Input validation issue in AWS Amplify Studio UI component properties CVSS 4.0CRITICAL 9.0
TI-2026-11603 HTTP/2 Stream Parser Confusion Body-Inspection Bypass in Amazon CloudFront with AWS WAF CVSS 4.0HIGH 7.9

See all 383 →

Sources

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