CVE-2026-75910

Incorrect privilege assignment in the Amazon aws-athena-query-federation ClickHouse connector deployment template

State: Published
Severity: 7.1 High
Published: Aug 20, 2026
Updated: Aug 25, 2026
Reserved: Aug 18, 2026

Description

Incorrect privilege assignment in the ClickHouse connector deployment template in Amazon Athena Federated Query prior to v2026.17.1 could allow an authenticated remote user to read arbitrary AWS Secrets Manager secrets in the deploying account by pointing the connector's connection string at an unrelated secret and at a database endpoint under the user's control, causing the connector to transmit the secret to that endpoint. To remediate this issue, users should upgrade to aws-athena-query-federation connectors version v2026.17.1 or later and ensure that any forked or derivative code is patched to incorporate the new fixes. Alternatively, to remediate this issue, users should redeploy the connector with the current template and supply a non-empty SecretNamePrefix value.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	AMZN
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	AMZN

Weaknesses

CWE-266 Incorrect privilege assignment

Affected Products

Product	Versions
Athena Federated Query Clickhouse Connector deployment templateAWS	before 2026.17.1Affected

References

https://github.com/awslabs/aws-athena-query-federation/releases/tag/v2026.17.1patch
https://aws.amazon.com/security/security-bulletins/2026-084-aws/vendor-advisory
https://github.com/awslabs/aws-athena-query-federation/security/advisories/GHSA-vmjg-c6wv-wjm9third-party-advisory

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