← Vulnerability feed

Vulnerability record · CVE-2026-83551 · published 1 September 2026

CVE-2026-83551: Cleartext storage of sensitive data vulnerability

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.

8.5 CVSS 4.0 High EPSS 0.63% · top 52.0% CWE-312 · Cleartext storage of sensitive data Awaiting Analysis
8.5CVSS 4.0 base score
0.63%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
3 Sep 2026Last modified by NVD

Description

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:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://aws.amazon.com/security/security-bulletins/2026-093-aws/
https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.11.0
https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-7xmc-crrw-fv5r

Track CVE-2026-83551 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

5.7CVE-2011-4723D-Link DIR-300 router stores passwords in cleartextThe D-Link DIR-300 router stores passwords in cleartext rather than in a protected form. Anyone who can reach the stored data can read credentials di…KEVEPSS 3.1%analysed

Source: NIST National Vulnerability Database (record CVE-2026-83551), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.