CVE-2026-44728 PUBLISHED

Improper Control of Generation of Code when compiling specifically crafted malicious code with @babel/plugin-transform-modules-systemjs

Assigner: GitHub_M
Reserved: 07.05.2026 Published: 26.05.2026 Updated: 27.05.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS Score: 8.2

Product Status

Vendor babel
Product babel
Versions
  • Version >= 7.12.0, < 7.29.4 is affected
  • Version >= 8.0.0-alpha.0, < 8.0.0-alpha.13 is affected
Vendor @babel
Product plugin-transform-modules-systemjs
Versions
  • Version >= 7.12.0, < 7.29.4 is affected
  • Version >= 8.0.0-alpha.0, < 8.0.0-alpha.13 is affected

References

Problem Types

  • CWE-94: Improper Control of Generation of Code ('Code Injection') CWE
  • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') CWE