CVE-2026-1777

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 v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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-pv9c

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) El SDK de Python de Amazon SageMaker anterior a las versiones v3.2.0 y v2.256.0 incluye la clave de firma HMAC de ModelBuilder en los elementos de respuesta en texto claro de la función DescribeTrainingJob. Un tercero con permisos tanto para llamar a esta API como para modificar objetos en la ubicación de salida S3 de los trabajos de entrenamiento podría tener la capacidad de cargar artefactos arbitrarios que se ejecutan la próxima vez que se invoca el trabajo de entrenamiento.

03 Feb 2026, 16:16

Type	Values Removed	Values Added
References		() 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-pv9c -

02 Feb 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-02 23:16

Updated : 2026-04-15 00:35

NVD link : CVE-2026-1777

Mitre link : CVE-2026-1777

CVE.ORG link : CVE-2026-1777

JSON object : View

Products Affected

No product.

CWE

CWE-319

Cleartext Transmission of Sensitive Information

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