High 7.2Published Feb 2, 2026

CVE-2026-1777Cleartext transmission of sensitive materials in aws/sagemaker-python-sdk

Updated under an hour ago (Oct 27, 2026, 1:00 AM ET)

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It affects AWS SageMaker Python SDK. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for AWS SageMaker Python SDK

Exploited in the last 30 days

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: 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-319
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: AMZN
NVD analysis: Deferred
Record last updated: Feb 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

AWS SageMaker Python SDK aws:sagemaker_python_sdk (from the name)	3.2.0 not affected; 2.256.0 not affected	CNA record

References

References

https://aws.amazon.com/security/security-bulletins/2026-004-AWS/	vendor-advisory
https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c	third-party-advisory
https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0	patch
https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.