Vulnerability 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 Score
HIGH
Related Weaknesses (CWE)
References
- https://aws.amazon.com/security/security-bulletins/2026-004-AWS/
- https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
- https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0
- https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-p
FAQ
What is CVE-2026-1777?
CVE-2026-1777 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 permiss...
How severe is CVE-2026-1777?
CVE-2026-1777 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1777?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.