What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-02 · updated 2026-06-17
• Weakness: CWE-319

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.

References

• 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

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