What is CVE-2026-83551?

CVE-2026-83551 is a high-severity vulnerability in AWS Sagemaker-Python-Sdk, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.2/10. Published 2026-09-01.

How severe is CVE-2026-83551?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in AWS Sagemaker-Python-Sdk

CVE-2026-83551

Cleartext storage of sensitive information in the @step and @remote decorator pipeline component in Amazon SageMaker Python SDK before v3.11.0 and v2.256.0 might allow an authenticated remote user to extract the HMAC signing key from SageMaker DescribePipeline API responses and forge valid integrity signatures for specially crafted function payloads, achieving code execution in another user's pipeline execution context within the same AWS account.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Aws Sagemaker-python-sdk

Weakness classification (CWE)

CWE-312 — Cleartext Storage of Sensitive Information

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (release-notes, patch)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (release-notes, patch)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (release-notes)

Frequently asked questions

What is CVE-2026-83551?: CVE-2026-83551 is a high-severity vulnerability in AWS Sagemaker-Python-Sdk, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.2/10. Published 2026-09-01.
How severe is CVE-2026-83551?: High severity. CVSS v3 base score is 7.2 out of 10.