# CVE-2026-77810

## Summary

- **CVE ID:** CVE-2026-77810
- **Severity:** CRITICAL
- **CVSS Score:** 9.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H)
- **CWE:** CWE-95
- **Published:** Aug 21, 2026
- **Last Modified:** Aug 27, 2026

## Description

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 (2024.15.1)

## References

- [CNA](https://github.com/awslabs/aws-athena-query-federation/releases/tag/v2026.30.1)
- [CNA](https://aws.amazon.com/security/security-bulletins/2026-087-aws/)
- [CNA](https://github.com/awslabs/aws-athena-query-federation/security/advisories/GHSA-v7c2-5wfg-qg44)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.35%
- **EPSS Percentile:** 27.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._