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CVE-2026-109149— beautifier js-beautify memory allocation

Quick assessment

Affected
beautifier js-beautify
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.

在 js-beautify（js-beautifier）1.15.1/2.0.3 及更早版本中发现了一个安全弱点。受影响的组件是一个未知函数。执行恶意操作可能导致不受控制的内存分配。该漏洞可能被远程利用。供应商在披露早期已被联系，但并未作出任何回应。

CVSS 5.3 · Medium

Affected Version Matrix 6

VendorProduct Version RangeStatus
beautifier js-beautify 1.15.0 affected
1.15.1 affected
2.0.0 affected
2.0.1 affected
2.0.2 affected
2.0.3 affected
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I. Basic Information for CVE-2026-109149

Vulnerability Information
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Vulnerability Title
beautifier js-beautify memory allocation
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的内存分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
beautifier js-beautify 1.15.0 cpe:2.3:a:beautifier:js-beautify:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-109149

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III. Intelligence Information for CVE-2026-109149

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Other References for CVE-2026-109149 (1)

IV. Related Vulnerabilities

Same weakness: CWE-789

V. Comments for CVE-2026-109149

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