CVE-2026-8596
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BaseFortify

Publication date: 2026-05-14

Last updated on: 2026-05-15

Assigner: AMZN

Description
Cleartext storage of sensitive information in the ModelBuilder/Serve component in Amazon SageMaker Python SDK before v2.257.2 and v3 before v3.8.0 might allow a remote authenticated actor to extract the HMAC signing key from SageMaker API responses and forge valid integrity signatures for specially crafted model artifacts, achieving code execution in inference containers. This issue requires a remote authenticated actor with permissions to call SageMaker describe APIs and S3 write access to the model artifact path. To remediate this issue, we recommend upgrading to Amazon SageMaker Python SDK v2.257.2 or v3.8.0 and rebuild any models previously created with ModelBuilder using the updated SDK.
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Meta Information
Published
2026-05-14
Last Modified
2026-05-15
Generated
2026-05-20
EPSS Evaluated
2026-05-19
NVD
CVE-2026-8596
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-312 The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere.
Attack-Flow Graph
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