CVE-2026-77810 PUBLISHED

Code Injection via Gremlin Query Passthrough in Amazon Athena Neptune Connector

Assigner: AMZN
Reserved: 21.08.2026 Published: 21.08.2026 Updated: 21.08.2026

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.

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.9

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: 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
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	AWS
Product	Athena Federated Query Neptune Connector
Versions	Default: unaffected affected from 2024.15.1 to 2026.28.1 (incl.)

References

Problem Types

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

Impacts

CAPEC-35 Leverage Executable Code in Non-Executable Files