CVE-2026-11400CWE-426

CVE-2026-11400

High · published June 6, 2026

CVSS v3.1
8.0
EPSS
0%
Percentile
32.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.0 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00396 · 32.6th percentile
Weakness
CWE-426 · Untrusted Search Path
Published
2026-06-06T00:17Z
References (3)
https://aws.amazon.com/security/security-bulletins/2026-039-aws/ · ff89ba41-3aa1-4d27-914a-91399e9639e5https://github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.0.1 · ff89ba41-3aa1-4d27-914a-91399e9639e5https://github.com/aws/aws-advanced-jdbc-wrapper/security/advisories/GHSA-mhww-p97m-3368 · ff89ba41-3aa1-4d27-914a-91399e9639e5
EPSS history
Timeline
  • 05 JUN 19:07Z
    Privilege Escalation in AWS Advanced JDBC Wrapper for Amazon Aurora PostgreSQL
    cvelistv5