---
id: CVE-2026-109149
title: A weakness has been identified in beautifier js-beautify up to 1.15.1/2.0.3
summary: >-
  A weakness has been identified in beautifier js-beautify up to 1.15.1/2.0.3.
  The affected element is an unknown function. Executing a manipulation can lead
  to uncontrolled memory allocation. The attack may be launched remotely. The
  vendo…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-400
  - CWE-789
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T13:29:12.567'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109149'
references:
  - url: 'https://github.com/beautifier/js-beautify/'
    label: cna@vuldb.com
  - url: 'https://github.com/beautifier/js-beautify/issues/2522'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-109149'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/978621'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/416885'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/416885/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-10-13T10:22:03.558Z'
---

## Overview

A weakness has been identified in beautifier js-beautify up to 1.15.1/2.0.3. The affected element is an unknown function. Executing a manipulation can lead to uncontrolled memory allocation. The attack may be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.