CVE-2026-83551

Description

Cleartext storage of sensitive information in the @step and @remote decorator pipeline component in Amazon SageMaker Python SDK before v3.11.0 and v2.256.0 might allow an authenticated remote user to extract the HMAC signing key from SageMaker DescribePipeline API responses and forge valid integrity signatures for specially crafted function payloads, achieving code execution in another user's pipeline execution context within the same AWS account.

CVSS Vector

References

• https://aws.amazon.com/security/security-bulletins/2026-093-aws/
• https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
• https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.11.0
• https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-7xmc-crrw-fv5r