CVE-2026-1778

Medium

Description

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.

SeverityMedium

CVSS5.9

Exploit probability—

ProductSagemaker

PublishedFeb 2, 2026

First seenFeb 2, 2026

Weakness typeCWE-295CWE-295

How to fix

Update

sagemaker3.1.1, 2.256.0 or later

Patches

github.com/aws/sagemaker-python-sdk/releases/tag/v3.1.1
github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0

Vendor advisories

aws.amazon.com/security/security-bulletins/2026-004-AWS/

Affected products

Product	Affected versions	Fixed in
sagemakerPyPI	3.0 ≤ v < 3.1.1, v < 2.256.0	3.1.1, 2.256.0

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