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CVE PROGRAM SOURCE RECORD9.4 Critical

CVE-2026-112408

Missing bucket ownership verification in Amazon SageMaker Python SDK default_bucket()

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

AWS Amazon SageMaker Python SDK

Default version status: unaffected

  • 0 to < 2.257.3affected
  • 3.0.0 to < 3.10.0affected

References