CVE-2026-107352 AWS CVE debrief

Who should care

Defenders responsible for Amazon Athena engine version 3 deployments should verify their inventory and monitor for unusual query metadata access patterns. This includes reviewing user access controls, monitoring query logs, and ensuring that security patches are applied. Additionally, security teams should review AWS security bulletins for updates and track exceptions, retest remediated assets, and close the item only after evidence is documented. Security

Why it matters

CVE-2026-107352 requires verification of Amazon Athena engine version 3 user inventory and monitoring for unusual query metadata access patterns to prevent potential unauthorized access to query metadata.

• Verify inventory of Amazon Athena engine version 3 users
• Monitor for unusual query metadata access patterns
• Review AWS security bulletins for updates

Technical summary

Missing authorization checks in Amazon Athena engine version 3 request handling could have allowed an authenticated user to read limited query metadata (AWS account identifiers and SQL statement text) from other AWS accounts. Query results, credentials, and Amazon S3 data were not affected. The vulnerability was identified through internal testing and review processes, and AWS has confirmed no customer metadata was accessed. The remediation was completed on September 1, 2026, and included a thorough review of the affected systems to ensure the issue was fully resolved.

Defensive priority

Verify inventory of Amazon Athena engine version 3 users and monitor for unusual query metadata access patterns.

Recommended defensive actions

• Verify inventory of Amazon Athena engine version 3 users
• Monitor for unusual query metadata access patterns
• Review AWS security bulletins for updates
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE Program record and NVD vulnerability detail page provide official information about the vulnerability. AWS has confirmed no customer metadata was accessed and has remediated the issue on September 1, 2026.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.