OS Command Injection in Amazon SageMaker Distribution (CVE-2026-104019)
Summary
OS command injection in Amazon SageMaker Distribution (CVE-2026-104019). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 2.14.12 or later.
Original description
The description as published by the source.
Bulletin ID: 2026-125-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 10/02/2026 13:00 PM PDT Description: Amazon SageMaker Unified Studio is an AWS service that unifies data, analytics, and AI development. It lets you find and access your organization's data and act on it with integrated, purpose-built tools. We identified CVE-2026-104019, an issue with the startup of SageMaker Spaces in SageMaker Unified Studio. The startup script in a SageMaker Space performs a network validation against all the available SageMaker connections in a project. Under certain conditions, improper sanitization of connection details during this validation could allow arbitrary code to be executed in the Space of another project member. In projects with the Trusted Identity Propagation feature enabled, this issue could result in a user with project contributor permissions (or higher) gaining access to another member's temporary execution role credentials and calling downstream trusted identity propagation-enabled AWS services on their behalf. We implemented a fix to all supported SageMaker Distribution versions to sanitize connection details during the startup validation process. The fix is deployed globally and will apply to all Spaces automatically on the next startup. Impacted versions: - 2.8.x - 2.13.x: all versions affected, no fix (end of support) - 2.14.x: < 2.14.12, fixed in 2.14.12 - 3.3.x - 3.8.x: all versions affected, no fix (end of support) - 3.9.x: < 3.9…
Source: AWS Security Bulletins NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-104019 has been found in Amazon SageMaker Distribution.
Successful exploitation can lead to full system takeover. CVSS score: 9.0/10.
What to do: upgrade Amazon SageMaker Distribution to 2.14.12 or later.
If unsure, ask your IT team or search "Amazon SageMaker Distribution CVE-2026-104019" on the vendor's site.
CVE-2026-104019 (Amazon SageMaker Distribution) — CWE-78 / CVSS v3 9.0
Attack vector: remote (network-reachable)
Patched: 2.14.12 — apply immediately
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.
OS command injection (CWE-78) exists in Amazon SageMaker Distribution.
Check the vendor advisory for the affected versions of Amazon SageMaker Distribution.
Severity: Critical (CVSS 9.0/10). Successful exploitation can lead to full system takeover.
Update to 2.14.12.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Amazon SageMaker Distribution を使っているサービスとバージョンを洗い出す。
-
2Apply patch patch
Upgrade Amazon SageMaker Distribution to 2.14.12ステージング環境で 2.14.12 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を含めること。
-
3Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- AWS aws.amazon.com
- web aws.amazon.com
- web github.com
- web github.com