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Critical

Missing bucket ownership verification in Amazon SageMaker Python SDK default_bucket()

Type: advisorySource: Official CVE List1 source record

Missing verification of source of a communication channel in the default_bucket() function in Amazon SageMaker Python SDK V3 before 3.10.0 and V2 before 2.257.3 might allow remote actors to achieve code execution in the target SageMaker execution environment and obtain IAM credentials via pre-creation of a predictably named S3 bucket that the SDK uses without ownership validation. To remediate this issue, users should upgrade to Amazon SageMaker Python SDK 3.10.0 (V3) or 2.257.3 (V2).

Announced Source revision 1
Original source ↗

CVE-2026-112408

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-112408

Amazon SageMaker Python SDK

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "AWS",
    "product": "Amazon SageMaker Python SDK",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "2.257.3",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "3.0.0",
        "lessThan": "3.10.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-112408

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#49420 · Revision 1
Added to Heist Feed
Publisher date
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