CVE-2026-1777— Cleartext transmission of sensitive materials in aws/sagemaker-python-sdk
Quick assessment
Affected
AWS SageMaker Python SDK
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Amazon SageMaker Python SDK是美国亚马逊（Amazon）公司的一个构件、训练和部署机器学习模型的开发者工具包。 Amazon SageMaker Python SDK v3.2.0之前版本和v2.256.0之前版本存在安全漏洞，该漏洞源于DescribeTrainingJob函数的明文响应中包含ModelBuilder HMAC签名密钥，可能导致第三方上传并执行任意工件。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-1777
Vulnerability Information
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Vulnerability Title
Cleartext transmission of sensitive materials in aws/sagemaker-python-sdk
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
敏感数据的明文传输
Source: CVE Program / CVE List V5
Vulnerability Title
Amazon SageMaker Python SDK 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Amazon SageMaker Python SDK是美国亚马逊（Amazon）公司的一个构件、训练和部署机器学习模型的开发者工具包。 Amazon SageMaker Python SDK v3.2.0之前版本和v2.256.0之前版本存在安全漏洞，该漏洞源于DescribeTrainingJob函数的明文响应中包含ModelBuilder HMAC签名密钥，可能导致第三方上传并执行任意工件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| AWS | SageMaker Python SDK | - | - |
|
II. Public POCs for CVE-2026-1777
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-1777 (2)
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