# CVE-2026-8597: Missing integrity verification in Triton inference handler in Amazon SageMaker Python SDK

> CVE-2026-8597: Missing integrity verification in Triton inference handler in Amazon SageMaker Python SDK. CVSS 7.2 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-8597
Last updated: 2026-10-20T19:19:23Z

- Published: 2026-05-14 19:37 UTC · Updated: 2026-10-20 19:19 UTC · Assigner: AMZN
- CVSS: 7.2 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS: 0.51%, 43th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-354

## 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 vendors and products

- AWS: Amazon SageMaker Python SDK

## Tracked companies

- [Amazon Web Services](https://rewindex.com/company/aws.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-8597)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-8597)
- [https://aws.amazon.com/security/security-bulletins/2026-031-aws/](https://aws.amazon.com/security/security-bulletins/2026-031-aws/)
- [https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.257.2](https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.257.2)
- [https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.8.0](https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.8.0)
- [https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rq6v-x3j8-7qgf](https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rq6v-x3j8-7qgf)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-8597 · Markdown: https://rewindex.com/cve/CVE-2026-8597.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-8597 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:12:02.068Z