{"id":"CVE-2026-112408","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-112408","generatedAt":"2026-10-28T04:35:24.499Z","title":"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…","description":"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.\n\n\n\nTo remediate this issue, users should upgrade to Amazon SageMaker Python SDK 3.10.0 (V3) or 2.257.3 (V2).","published":"2026-10-21T20:17:24.000Z","lastModified":"2026-10-22T17:21:57.000Z","status":"Awaiting Analysis","sourceIdentifier":"ff89ba41-3aa1-4d27-914a-91399e9639e5","cvss":{"version":"4.0","score":9.4,"severity":"CRITICAL","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-940"],"affected":[],"epss":{"score":0.00743,"percentile":0.54509,"date":"2026-10-27","history":[{"date":"2026-10-22","score":0.00719,"percentile":0.53345}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-21T20:17:24.000Z","detail":{"score":"9.4","severity":"CRITICAL","publishedAt":"2026-10-21T20:17:23.877Z"},"summary":"New CVE, critical severity (CVSS 9.4)."}],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-142-aws/","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.257.3","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.10.0","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-5rx8-8fr2-f855","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://pypi.org/project/sagemaker/2.257.3/","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://pypi.org/project/sagemaker/3.10.0/","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-112408","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}