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CVE-2026-1778

Good to know:

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Date: February 2, 2026

Amazon SageMaker Python SDK before v3.1.1 or v2.256.0 disables TLS certificate verification for HTTPS connections made by the service when a Triton Python model is imported, incorrectly allowing for requests with invalid and self-signed certificates to succeed.

Severity Score

Related Resources (10)

https://github.com/aws/sagemaker-python-sdk/commit/5e7a3efa7bec0a161194ffa0cef346dda93bf2c6
https://aws.amazon.com/security/security-bulletins/2026-004-AWS/
https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-62rc-f4v9-h543
https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.1.1
https://nvd.nist.gov/vuln/detail/CVE-2026-1778
https://aws.amazon.com/security/security-bulletins/2026-004-AWS
https://github.com/aws/sagemaker-python-sdk
https://github.com/aws/sagemaker-python-sdk/commit/c8098958910f7db78d07037425debfd4d44a6964
https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
https://www.mend.io/vulnerability-database/CVE-2026-1778

Severity Score

Weakness Type (CWE)

Improper Certificate Validation

CWE-295

Missing Validation of OpenSSL Certificate

CWE-599

Top Fix

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Upgrade Version

Upgrade to version sagemaker - 3.1.1;sagemaker - 2.256.0;https://github.com/aws/sagemaker-python-sdk.git - v3.1.1;https://github.com/aws/sagemaker-python-sdk.git - v3.4.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

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