Live › vulnerability › CVE-2026-118029
Go to dashboardAWS SDK for pandas (awswrangler) does not verify that the default Athena query result S3 bucket belongs to the caller's account. A remote user who pre-creates that bucket can read Athena query results and alter result sets returned to the calling code.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-28 16:04 UTC, 0h before NVD. All times on this page are UTC.
Teams running awswrangler below that use Amazon Athena through the default query result location. The exposure depends on the default result bucket being pre-created by someone else, so teams that set an explicit result location or enforce a workgroup result configuration are less exposed. Teams not using Athena through this library can skip it.
3.16.1No product ranges from the sources yet.
pip show awswrangler and compare the version to 3.16.1.s3_output or a workgroup result configuration.3.16.1 or later.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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 [email protected] with any security questions or concerns.
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