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

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Summary

CVECVE-2026-44728
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-26 18:16:50 UTC
Updated2026-05-27 18:21:19 UTC
DescriptionBabel 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.000200000 probability, percentile 0.058850000 (date 2026-05-27)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1[email protected]Secondary8.2HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
3.1CNADECLARED8.2HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Babel Babel All All All All
Application Babel Babel 8.0.0 alpha0 All All
Application Babel Babel 8.0.0 alpha1 All All
Application Babel Babel 8.0.0 alpha10 All All
Application Babel Babel 8.0.0 alpha11 All All
Application Babel Babel 8.0.0 alpha12 All All
Application Babel Babel 8.0.0 alpha2 All All
Application Babel Babel 8.0.0 alpha3 All All
Application Babel Babel 8.0.0 alpha4 All All
Application Babel Babel 8.0.0 alpha5 All All
Application Babel Babel 8.0.0 alpha6 All All
Application Babel Babel 8.0.0 alpha7 All All
Application Babel Babel 8.0.0 alpha8 All All
Application Babel Babel 8.0.0 alpha9 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Babel Babel affected >= 7.12.0, < 7.29.4 Not specified
CNA Babel Babel affected >= 8.0.0-alpha.0, < 8.0.0-alpha.13 Not specified
CNA @babel Plugin-transform-modules-systemjs affected >= 7.12.0, < 7.29.4 Not specified
CNA @babel Plugin-transform-modules-systemjs affected >= 8.0.0-alpha.0, < 8.0.0-alpha.13 Not specified

References

ReferenceSourceLinkTags
github.com/babel/babel/security/advisories/GHSA-fv7c-fp4j-7gwp [email protected] github.com Mitigation, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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