CVE-2026-11400

HIGHPre-NVD 8.08.0
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.0 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 78% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:amzn, epss
8.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.0Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
8.0
EG Score
8.0(medium)
EPSS
22.3%
KEV
Not listed

Published

June 5, 2026

Last Modified

June 9, 2026

Advisory Details (3)

Auto-updated Jun 5, 2026
Patch available. Sources: github_release.
github_release Patch Available

AWS Advanced JDBC Wrapper - v4.0.1

Patch available: aws/aws-advanced-jdbc-wrapper 4.0.1

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

CVE-2026-11400 and CVE-2026-11401 - Privilege Escalation in Aurora PostgreSQL using AWS Advanced JDBC Wrapper, AWS Advanced Go Wrapper

https://aws.amazon.com/security/security-bulletins/2026-039-aws/

Vendor Advisories for CVE-2026-11400(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 17× in last 7d / 88× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

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Frequently asked(5)

What is CVE-2026-11400?
CVE-2026-11400 is a high vulnerability published on June 5, 2026. 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…
When was CVE-2026-11400 disclosed?
CVE-2026-11400 was first published in the National Vulnerability Database on June 5, 2026, with the most recent update on June 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11400 actively exploited?
CVE-2026-11400 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-11400?
CVE-2026-11400 has a CVSS v4.0 base score of 8.0 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-11400?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11400, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-11400

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