High severity8.1NVD Advisory· Published Oct 21, 2026
CVE-2026-112408
CVE-2026-112408
Description
Missing verification of source of a communication channel in the default_bucket() function in Amazon SageMaker Python SDK V3 before 3.10.0 and V2 before 2.257.3 might allow remote actors to achieve code execution in the target SageMaker execution environment and obtain IAM credentials via pre-creation of a predictably named S3 bucket that the SDK uses without ownership validation.
To remediate this issue, users should upgrade to Amazon SageMaker Python SDK 3.10.0 (V3) or 2.257.3 (V2).
Affected products
2- Range: <3.10.0, <2.257.3
- Range: <3.10.0, <2.257.3
Patches
Vulnerability mechanics
References
6- aws.amazon.com/security/security-bulletins/2026-142-aws/nvd
- github.com/aws/sagemaker-python-sdk/releases/tag/v2.257.3nvd
- github.com/aws/sagemaker-python-sdk/releases/tag/v3.10.0nvd
- github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-5rx8-8fr2-f855nvd
- pypi.org/project/sagemaker/2.257.3/nvd
- pypi.org/project/sagemaker/3.10.0/nvd
News mentions
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