CVE intelligence

CVE-2026-104019

Vulnerability intelligence

Published Oct 2, 2026Sources checked Oct 2, 2026

9.0CRITICALCVSS out of 10

What this means

Review the available evidence

CVE-2026-104019 and is rated Critical severity with a CVSS score of 9.0. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

AWS Security Bulletins guidance

Vendor remediation details

Impacted versions: - 2.8.x - 2.13.x: all versions affected, no fix (end of support) - 2.14.x: < 2.14.12, fixed in 2.14.12 - 3.3.x - 3.8.x: all versions affected, no fix (end of support) - 3.9.x: < 3.9.12, fixed in 3.9.12 - 4.0.x: < 4.0.11, fixed in 4.0.11 - 4.1.x: < 4.1.11, fixed in 4.1.11 - 4.2.x: < 4.2.8, fixed in 4.2.8 - 4.3.x: < 4.3.5, fixed in 4.3.5 - 4.4.x: < 4.4.3, fixed in 4.4.3 - 4.5.x: not affected - < 2.8.0 and < 3.3.0: not affected Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

CISA KEVNot listedBased on the latest collected catalog

EPSSUnavailableNo current score collected

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-104019?

OS command injection in the Studio Space startup validation script in Amazon SageMaker Distribution 2.x before 2.14.12, 3.x before 3.9.12, 4.0.x before 4.0.11, 4.1.x before 4.1.11, 4.2.x before 4.2.8, 4.3.x before 4.3.5, and 4.4.x before 4.4.3, as used by Amazon SageMaker Unified Studio, might allow an authenticated remote user with project contributor permissions to execute arbitrary commands in another project member's Studio Space and obtain that member's temporary execution role credentials via a crafted connection resource property that is interpolated into a shell invocation without neutralization. To remediate this issue, users should upgrade to version 2.14.12, 3.9.12, 4.0.11, 4.1.11, 4.2.8, 4.3.5, or 4.4.3, as applicable to the minor line in use. Users on minor lines that have reached end of support must move to a supported minor line, because no patched version will be released for those lines. In Amazon SageMaker Unified Studio, Studio Spaces adopt the latest patch of their minor line on restart once the patched images are deployed, so no version selection is required.