CVE-2026-77810

Code Injection via Gremlin Query Passthrough in Amazon Athena Neptune Connector

Published Aug 21, 2026 CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Code Injection via Gremlin Query Passthrough in Amazon Athena Neptune Connector
First Time appeared Aws
Aws athena Federated Query Neptune Connector
Weaknesses CWE-95
CPEs cpe:2.3:a:aws:athena_federated_query_neptune_connector:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws athena Federated Query Neptune Connector
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.4, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMZN
Published
Updated
Aug 27, 2026, 4:46 PM
Reserved
Aug 21, 2026, 1:59 PM
Status
Awaiting Analysis
Published
Aug 21, 2026, 8:16 PM
Modified
Oct 12, 2026, 4:10 PM