CVE-2026-1777

high

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.

References

https://aws.amazon.com/security/security-bulletins/2026-004-AWS/

https://aws.amazon.com/security/security-bulletins/rss/2026-004-aws/

https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c

https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0

https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0

Details

Source: Mitre, NVD

Published: 2026-02-02

Updated: 2026-02-03

Risk Information

CVSS v2

Base Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.2

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base 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

Severity: High

EPSS

EPSS: 0.00011