CVE-2026-109149

MEDIUM 5.3

beautifier js-beautify memory allocation

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-789 CWE-400
Vendor	beautifier
Product	js-beautify
Published	Oct 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

beautifier / js-beautify

1.15.0 1.15.1 2.0.0 2.0.1 2.0.2 2.0.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/416885 vuldb.com: https://vuldb.com/vuln/416885/cti vuldb.com: https://vuldb.com/cve/CVE-2026-109149 vuldb.com: https://vuldb.com/submit/978621 github.com: https://github.com/beautifier/js-beautify/issues/2522 github.com: https://github.com/beautifier/js-beautify/

Credits

🔍 Mohammedix88 (VulDB User) VulDB CNA Team