CVE-2026-112408 Amazon SageMaker Python SDK - Remote Code Execution & Privilege Escalation

Amazon SageMaker Python SDK V3 < 3.10.0 and V2 < 2.257.3 contain a remote code execution caused by missing verification of source in default_bucket() function, letting remote attackers execute code and obtain IAM credentials via predictably named S3 bucket, exploit requires attacker to pre-create the bucket.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
21 October 2026
Updated
22 October 2026
Weakness
CWE-940

Vendor fix

Upgrade to Amazon SageMaker Python SDK V3 3.10.0 or V2 2.257.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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