Threats affecting pkg:pypi/sagemaker

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).

Missing integrity verification in the Triton inference handler in Amazon SageMaker Python SDK v2 before v2.257.2 and v3 before v3.8.0 might allow a remote authenticated actor to achieve code execution in inference containers via replacement of model artifacts in S3 with a specially crafted pickle payload that is deserialized without verification. This issue requires a remote authenticated actor with S3 write access to the model artifact path. To remediate this issue, we recommend upgrading to Amazon SageMaker Python SDK v2.257.2 or v3.8.0 and rebuild any Triton models previously created with ModelBuilder using the updated SDK.

CVE-2026-8596 is a high-severity vulnerability in the Amazon SageMaker Python SDK affecting versions 2.199.0 through 2.257.1 and 3.0.0 through 3.7.1. It involves cleartext storage of sensitive information in the ModelBuilder/Serve component, allowing a remote authenticated actor with specific permissions to extract the HMAC signing key from API responses. This can enable forging valid integrity signatures for crafted model artifacts, potentially leading to code execution in inference containers. The vulnerability requires the attacker to have permissions to call SageMaker describe APIs and write access to the model artifact S3 path. AWS has released fixed versions 2.257.2 and 3.8.0 to remediate this issue.

Amazon SageMaker Python SDK before v3.1.1 or v2.256.0 disables TLS certificate verification for HTTPS connections made by the service when a Triton Python model is imported, incorrectly allowing for requests with invalid and self-signed certificates to succeed.

CVE-2026-1777 is a vulnerability in the Amazon SageMaker Python SDK versions before 2.256.0 and 3.2.0. The SDK includes the ModelBuilder HMAC signing key in cleartext within the response of the DescribeTrainingJob API function. This exposure allows a third party with both API call permissions and write access to the Training Jobs S3 output location to upload arbitrary artifacts that could be executed during subsequent training job invocations.