Vulnerability in Amazon sagemaker (CVE-2026-8596)
Summary
vulnerability in Amazon sagemaker (CVE-2026-8596). Successful exploitation can lead to full system takeover. Mitigation: upgrade to `3.8.0` or later.
AI summary snake-internal / snake-material-v2
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'sagemaker' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `sagemaker` を grep し、稼働しているサービス・バージョンを把握する。
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5Apply temporary workaround mitigate
If upgrading is not immediately possible, users can manually remove the SAGEMAKER_SERVE_SECRET_KEY environment variable from existing SageMaker models by recreating the model without this variable in the container environment configuration.パッチが適用されるまでの応急処置として、If upgrading is not immediately possible, users can manually remove the SAGEMAKER_SERVE_SECRET_KEY environment variable from existing SageMaker models by recreating the model without this variable in the container environment configuration. を実施。回避策の副作用 (機能低下) を確認した上で。
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6Apply patch patch
Upgrade sagemaker to 3.8.0ステージング環境で 3.8.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-8596
- AWS https://aws.amazon.com/security/security-bulletins/rss/2026-031-aws/
- package https://github.com/aws/sagemaker-python-sdk
- web ff89ba41-3aa1-4d27-914a-91399e9639e5
- web https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.257.2
- web https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.8.0
- web https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-7hh5-prp2-mfh5
- web https://aws.amazon.com/security/security-bulletins/2026-031-aws
- web https://github.com/advisories/GHSA-7hh5-prp2-mfh5