CVE-2026-112408 (GCVE-0-2026-112408)
Vulnerability from cvelistv5
Published
2026-10-21 19:36
Modified
2026-10-21 19:47
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4 (Critical) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N
CWE
  • CWE-940 - Improper verification of source of a communication channel
Summary
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).
References
Impacted products
Vendor Product Version
AWS Amazon SageMaker Python SDK Version: 0   < 2.257.3
Version: 3.0.0   < 3.10.0
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      ],
      "source": {
        "discovery": "UNKNOWN"
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    "dateReserved": "2026-10-19T17:00:36.100Z",
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