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.
History

Wed, 04 Feb 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Amazon
Amazon sagemaker Python Sdk
Vendors & Products Amazon
Amazon sagemaker Python Sdk

Tue, 03 Feb 2026 15:30:00 +0000


Tue, 03 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 02 Feb 2026 23:15:00 +0000

Type Values Removed Values Added
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.
Title Cleartext transmission of sensitive materials in aws/sagemaker-python-sdk
Weaknesses CWE-319
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-02-04T16:28:49.875Z

Reserved: 2026-02-02T18:13:49.829Z

Link: CVE-2026-1777

cve-icon Vulnrichment

Updated: 2026-02-03T15:00:45.722Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-02T23:16:04.097

Modified: 2026-02-03T16:44:03.343

Link: CVE-2026-1777

cve-icon Redhat

No data.