# CVE-2026-11400: Privilege Escalation in AWS Advanced JDBC Wrapper for Amazon Aurora PostgreSQL

> CVE-2026-11400: Privilege Escalation in AWS Advanced JDBC Wrapper for Amazon Aurora PostgreSQL. CVSS 8.0 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-11400
Last updated: 2026-10-20T19:17:34Z

- Published: 2026-06-05 19:07 UTC · Updated: 2026-10-20 19:17 UTC · Assigner: AMZN
- CVSS: 8.0 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- EPSS: 0.50%, 42th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-426

## 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.

## Affected vendors and products

- AWS: AWS Advanced JDBC Wrapper

## Tracked companies

- [Amazon Web Services](https://rewindex.com/company/aws.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-11400)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-11400)
- [https://aws.amazon.com/security/security-bulletins/2026-039-aws/](https://aws.amazon.com/security/security-bulletins/2026-039-aws/)
- [https://github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.0.1](https://github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.0.1)
- [https://github.com/aws/aws-advanced-jdbc-wrapper/security/advisories/GHSA-mhww-p97m-3368](https://github.com/aws/aws-advanced-jdbc-wrapper/security/advisories/GHSA-mhww-p97m-3368)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-11400 · Markdown: https://rewindex.com/cve/CVE-2026-11400.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-11400 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:16:54.889Z