CVE-2026-77810: Aws Athena Federated Query Neptune Connector

Critical severity, CVSS 9.9. EPSS: 0.6% chance of exploitation in the next 30 days.

In the Neptune connector, a user with access to Neptune through Athena Federated Query could gain access to properties in the Lambda supplying the compute for the connector. To remediate this issue, users should upgrade to aws-athena-query-federation v2026.30.1 or later.

Affected products

• Aws Athena Federated Query Neptune Connector: from 2024.15.1, up to and including 2026.28.1

Published 2026-08-21. Last modified 2026-08-27.