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CVE-2026-44728— Improper Control of Generation of Code when compiling specifically crafted malicious code with @babel/plugin-transform-modules-systemjs

Quick assessment

Affected
babel babel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Babel是Babel开源的一个 JavaScript 的编译器。 Babel 7.12.0版本至7.29.4之前版本和8.0.0-alpha.13版本存在安全漏洞，该漏洞源于编译特制代码时可能生成执行任意代码的输出。

CVSS 8.2 · High EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
@babel plugin-transform-modules-systemjs >= 7.12.0, < 7.29.4 affected
>= 8.0.0-alpha.0, < 8.0.0-alpha.13 affected
babel babel >= 7.12.0, < 7.29.4 affected
>= 8.0.0-alpha.0, < 8.0.0-alpha.13 affected
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I. Basic Information for CVE-2026-44728

Vulnerability Information
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Vulnerability Title
Improper Control of Generation of Code when compiling specifically crafted malicious code with @babel/plugin-transform-modules-systemjs
Source: CVE Program / CVE List V5
Vulnerability Description
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Babel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Babel是Babel开源的一个 JavaScript 的编译器。 Babel 7.12.0版本至7.29.4之前版本和8.0.0-alpha.13版本存在安全漏洞，该漏洞源于编译特制代码时可能生成执行任意代码的输出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
babel babel >= 7.12.0, < 7.29.4 -
@babel plugin-transform-modules-systemjs >= 7.12.0, < 7.29.4 -

II. Public POCs for CVE-2026-44728

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III. Intelligence Information for CVE-2026-44728

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Vendor Advisories for CVE-2026-44728 (1)

IV. Related Vulnerabilities

Same product: babel
Same vendor: babel
Same weakness: CWE-94

V. Comments for CVE-2026-44728

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