CVE-2026-44728 json
Improper Control of Generation of Code when compiling specifically crafted malicious code with @babel/plugin-transform-modules-systemjs
published 6mo ago modified last mo. also EUVD-2026-31946 , GHSA-fv7c-fp4j-7gwp
- cvss
- 8.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 2%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm @babel/plugin-transform-modules-systemjs 7.29.4, 8.0.0-alpha.13
- babel plugin-transform-modules-systemjs 7.29.4, 8.0.0-alpha.13
- babeljs plugin-transform-modules-systemjs 7.29.4, 8.0.0-alpha.13
- node-babel7 Debian 14 8.0.4+ds1+~cs177.303.116-2
debian advisories DEBIAN-CVE-2026-44728
Is CVE-2026-44728 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5mo ago
Exploit prediction
0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.2 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 8.2 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @babel/plugin-transform-modules-systemjs | >=7.12.0, <7.29.4 >=8.0.0-alpha.0, <8.0.0-alpha.13 |
7.29.4 8.0.0-alpha.13 |
Affected products
- babel babel
- @babel plugin-transform-modules-systemjs
Classification
References
-
github.com
/babel/babel/security/advisories/GHSA-fv7c-fp4j-7gwp
web, mitigation, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-44728
advisory
-
github.com
/babel/babel
package
Sources
- CVE List CVE-2026-44728
- GitHub Advisory GHSA-fv7c-fp4j-7gwp
- NVD CVE-2026-44728
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.