CVE-2026-118029 - Unverified ownership of the default Athena query result location in AWS SDK for pandas
Bulletin ID: 2026-153-AWS
Scope: AWS
Content Type: Important (requires attention)
Publication Date: 10/28/2026 08:30 AM PDT
Description:
AWS SDK for pandas (awswrangler) is an open-source Python library that integrates pandas with AWS data services such as Amazon Athena, Amazon S3, and AWS Glue. We identified CVE-2026-118029 in the Athena module, where unverified ownership of the default query result location could allow a remote user to read Athena query results and tamper with result sets returned to the caller via a pre-created S3 bucket.
Impacted versions: awswrangler < 3.16.1
Resolution:
This issue has been addressed in AWS SDK for pandas version 3.16.1, released May 8, 2026. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.
Workarounds:
Verify that the default Athena result bucket in each account and Region is owned by your own account, and set an explicit result location or enforce a workgroup result configuration.
References:
Acknowledgement:
We would like to thank Dan Gansel of Upwind Security for collaborating on this issue through the coordinated vulnerability disclosure process.
Please email aws-security@amazon.com with any security questions or concerns.