Code Injection in @babel/plugin-transform-modules-systemjs (CVE-2026-44728)
Summary
Code injection 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.
Original description
The description as published by the source.
Babel is a compiler for writing next generation JavaScript. From 7.12.0 to before 7.29.4 and 8.0.0-alpha.13, using Babel to compile code that was specifically crafted by an attacker can cause Babel to generate output code that executes arbitrary code. This vulnerability is fixed in 7.29.4 and 8.0.0-alpha.13.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
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-2026-44728 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-94 / 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.
Arbitrary code execution (CWE-94) exists in @babel/plugin-transform-modules-systemjs.
Check the vendor advisory for the affected versions of @babel/plugin-transform-modules-systemjs.
Severity: High (CVSS 8.2/10). Successful exploitation can lead to full system takeover.
Update to 8.0.0-alpha.13.
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. 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
Concrete steps and command examples for SOC/SRE teams to execute in order
-
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。 -
2Apply 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。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-44728 node-babel7
- Ubuntu UBUNTU-CVE-2026-44728 node-babel7
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- ATLASSIAN JSWSERVER-26922
- package github.com
- web github.com