CVE-2026-35558 Amazon CVE debrief

Who should care

Users of Amazon Athena ODBC driver versions prior to 2.1.0.0 should be aware of this vulnerability and take steps to upgrade. This includes administrators and security teams responsible for managing and securing their organization's systems and data. The vulnerability has a high CVSS score, indicating a high severity level, and users should prioritize remediation efforts.

Technical summary

The Amazon Athena ODBC driver before version 2.1.0.0 has an improper neutralization of special elements in its authentication components. This could allow a threat actor to execute arbitrary code or redirect authentication flows by using specially crafted connection parameters during user-initiated authentication. The vulnerability is related to the driver's handling of authentication requests and connection parameters. Users should review their current version and upgrade to version 2.1.0.0 to prevent potential exploitation.

Defensive priority

High priority due to potential for arbitrary code execution and authentication flow redirection.

Recommended defensive actions

• Upgrade to version 2.1.0.0 of the Amazon Athena ODBC driver
• Review and restrict connection parameters to prevent specially crafted input
• Monitor for suspicious activity related to authentication flows
• Verify current version and upgrade if necessary
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

Evidence is based on the CVE record and NVD details. Limited information is available on the exact scope of affected systems and potential exploits. The Amazon Athena ODBC driver before version 2.1.0.0 has an improper neutralization of special elements in its authentication components. Users should verify their current version and upgrade if necessary. Defenders should review connection parameters and monitor for suspicious activity related to authentication flows.

Official resources