Vulnerability · Published May 14, 2026 · Assigned by AMZN
CVE-2026-8597Missing integrity verification in Triton inference handler in Amazon SageMaker Python SDK
High 7.2
In plain English
A high-severity security flaw in Amazon SageMaker Python SDK from AWS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Missing integrity verification in the Triton inference handler in Amazon SageMaker Python SDK v2 before v2.257.2 and v3 before v3.8.0 might allow a remote authenticated actor to achieve code execution in inference containers via replacement of model artifacts in S3 with a specially crafted pickle payload that is deserialized without verification. This issue requires a remote authenticated actor with S3 write access to the model artifact path. To remediate this issue, we recommend upgrading to Amazon SageMaker Python SDK v2.257.2 or v3.8.0 and rebuild any Triton models previously created with ModelBuilder using the updated SDK.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | sagemaker | 2.257.2 | GHSA-rq6v-x3j8-7qgf |
| PyPI | sagemaker | 3.8.0 | GHSA-rq6v-x3j8-7qgf |
| PyPI | sagemaker | 2.257.2, 3.8.0 | PYSEC-2026-3060 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AWS | Amazon SageMaker Python SDK | 2.199.0 – through 2.257.13.0.0 – through 3.7.1 |
Weakness: CWE-354 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.257.2 patch
- https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.8.0 patch
- https://aws.amazon.com/security/security-bulletins/2026-031-aws/ vendor-advisory
- https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rq6v-x3j8-7qgf third-party-advisory