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CVE-2026-44728
high
CVSS 8.2
Vulnerability in @babel/plugin-transform-modules-systemjs (CVE-2026-44728)
Summary
vulnerability in @babel/plugin-transform-modules-systemjs (CVE-2026-44728). Successful exploitation can lead to full system takeover. Mitigation: upgrade to `8.0.0-alpha.13` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-44728** has been found in @babel/plugin-transform-modules-systemjs.
Successful exploitation can lead to full system takeover. CVSS score: 8.2/10.
What to do: upgrade @babel/plugin-transform-modules-systemjs to **8.0.0-alpha.13** or later.
If unsure, ask your IT team or search "@babel/plugin-transform-modules-systemjs CVE-2026-44728" on the vendor's site.
CVE-2026-44728 (@babel/plugin-transform-modules-systemjs) — CWE-843 / CVSS v3 8.2
Attack vector: local
Patched: `8.0.0-alpha.13` — 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.
❓ What is the problem
**A vulnerability** (CWE-843) exists in @babel/plugin-transform-modules-systemjs.
📍 Affected scope
@babel/plugin-transform-modules-systemjs — .
🔥 Severity
Severity: High (CVSS 8.2/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **8.0.0-alpha.13**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r '@babel/plugin-transform-modules-systemjs' .` 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
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1Identify exposure identify
grep -r '@babel/plugin-transform-modules-systemjs' . | 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 `@babel/plugin-transform-modules-systemjs` 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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6Apply patch patch
Upgrade @babel/plugin-transform-modules-systemjs to 8.0.0-alpha.13ステージング環境で 8.0.0-alpha.13 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
npm
@babel/plugin-transform-modules-systemjs
[{"type":"SEMVER","events":[{"introduced":"8.0.0-alpha.0"},{"fixed":"8.0.0-alpha.13"}]}]