SageMaker Python SDK has Insecure TLS Configuration
Summary
SageMaker Python SDK is an open source library for training and deploying machine learning models on Amazon SageMaker. An issue where SSL certificate verification was globally disabled in the Triton Python backend has been found.
Impact
Arbitrary Code Execution: Disabling SSL verification allows third parties to intercept HTTPS traffic and replace models or dependencies with inappropriate versions. This could lead to remote code execution in the Triton container.
Impacted versions
- SageMaker Python SDK v3 < v3.1.1
- SageMaker Python SDK v2 < v2.256.0
Patches
This issue has been addressed in SageMaker Python SDK version v3.1.1 and v2.256.0. It is recommended to upgrade to the latest version immediately and ensure any forked or derivative code is patched to incorporate the new fixes.
Workarounds
Customers using self-signed certificates for internal model downloads should add their private Certificate Authority (CA) certificate to the container image rather than relying on the SDK’s previous insecure configuration. This opt-in approach maintains security while accommodating internal trusted domains.
References
If there are any questions or comments about this advisory, contact AWS Security via the vulnerability reporting page or directly via email to aws-security@amazon.com. Please do not create a public GitHub issue.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | sagemaker | >= 3.0, < 3.1.1, < 2.256.0 | 3.1.1, 2.256.0 |
References
- https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-62rc-f4v9-h543
- https://nvd.nist.gov/vuln/detail/CVE-2026-1778
- https://github.com/aws/sagemaker-python-sdk/commit/5e7a3efa7bec0a161194ffa0cef346dda93bf2c6
- https://github.com/aws/sagemaker-python-sdk/commit/c8098958910f7db78d07037425debfd4d44a6964
- https://aws.amazon.com/security/security-bulletins/2026-004-AWS
- https://github.com/aws/sagemaker-python-sdk
- https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
- https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.1.1
- https://pypi.org/project/sagemaker
- https://github.com/advisories/GHSA-62rc-f4v9-h543
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-295, CWE-599- Platform
- Python (PyPI)
- Package
sagemaker- Disclosed
- 02.02.2026
- Updated
- 11.10.2026 13:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1886 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-62rc-f4v9-h543 - CC BY 4.0
Vulnerability history: sagemaker
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 8
- First → latest
- 05.2024 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 6
- Medium 2
Disclosures per year
- 2024: 2
- 2025: 1
- 2026: 5
-
SageMaker Python SDK has Insecure TLS Configuration this entry
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