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CVE-2026-8596 high CVSS 7.2

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

A vulnerability tracked as **CVE-2026-8596** has been found in Amazon sagemaker. Successful exploitation can lead to full system takeover. CVSS score: 7.2/10. What to do: upgrade Amazon sagemaker to **3.8.0** or later. If unsure, ask your IT team or search "Amazon sagemaker CVE-2026-8596" on the vendor's site.
CVE-2026-8596 (Amazon sagemaker) — CWE-312 / CVSS v3 7.2 Attack vector: remote (network-reachable) / no user interaction Patched: `3.8.0` — apply immediately Workaround: 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. Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs. Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-312) exists in Amazon sagemaker.
📍 Affected scope
Amazon sagemaker — .
🔥 Severity
Severity: High (CVSS 7.2/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **3.8.0**.
🛡️ Workaround
Workaround: 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.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'sagemaker' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response Actions (7 steps)

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify 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。

  2. 5
    Apply 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。

  3. 6
    Apply 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。

  4. 7
    Post-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

pip sagemaker
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.0"}]}]
PyPI sagemaker
[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.8.0"}]}]

References

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