High severity7.2OSV Advisory· Published Feb 2, 2026· Updated Apr 15, 2026
CVE-2026-1777
CVE-2026-1777
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
sagemakerPyPI | >= 3.0, < 3.2.0 | 3.2.0 |
sagemakerPyPI | < 2.256.0 | 2.256.0 |
Affected products
2- Range: v1.0.0, v1.0.1, v1.0.2, …
Patches
Vulnerability mechanics
References
9- github.com/advisories/GHSA-rjrp-m2jw-pv9cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-1777ghsaADVISORY
- aws.amazon.com/security/security-bulletins/2026-004-AWSghsaWEB
- github.com/aws/sagemaker-python-sdk/commit/708c7b2f4135ecaec55973d098f3dbe98b657933ghsaWEB
- github.com/aws/sagemaker-python-sdk/commit/fb0d789db4fd5fecde5509963939369f4c7ce63bghsaWEB
- github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0nvdWEB
- github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0nvdWEB
- github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9cnvdWEB
- aws.amazon.com/security/security-bulletins/2026-004-AWS/nvd
News mentions
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