CVE-2026-77810

Code Injection via Gremlin Query Passthrough in Amazon Athena Neptune Connector

State: Published
Severity: 9.4 Critical
Published: Aug 21, 2026
Updated: Aug 27, 2026
Reserved: Aug 21, 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.

Scores

CVSS	Score	Vector	Source
4.0	9.4 Critical	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	AMZN
3.1	9.9 Critical	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	AMZN

Weaknesses

CWE-95 Improper neutralization of directives in dynamically evaluated code ('eval injection')

Affected Products

Product	Versions
Athena Federated Query Neptune ConnectorAWS	2024.15.1 through 2026.28.1Affected

References

https://github.com/awslabs/aws-athena-query-federation/releases/tag/v2026.30.1patch
https://aws.amazon.com/security/security-bulletins/2026-087-aws/vendor-advisory
https://github.com/awslabs/aws-athena-query-federation/security/advisories/GHSA-v7c2-5wfg-qg44third-party-advisory

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