Description
The Amazon SageMaker Python SDK before v3.2.0 and v2.256.0 includes the ModelBuilder HMAC signing key in the cleartext response elements of the DescribeTrainingJob function. A third party with permissions to both call this API and permissions to modify objects in the Training Jobs S3 output location may have the ability to upload arbitrary artifacts which are executed the next time the Training Job is invoked.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
High
Integrity (Subsequent System)
High
Availability (Subsequent System)
High
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- AWS / SageMaker Python SDK3.2.0 – 3.2.0
- AWS / SageMaker Python SDK2.256.0 – 2.256.0
References
- MISChttps://aws.amazon.com/security/security-bulletins/2026-004-AWS/
- VENDOR_ADVISORYhttps://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
- PATCHhttps://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
- PATCHhttps://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0