Resource exhaustion in Beautifier Js-Beautify
CVE-2026-109149
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Beautifier Js-Beautify — versions 1.15.0, 1.15.1, 2.0.0
Weakness classification (CWE)
References
- vuldb.com/vuln/416885 (vdb-entry)
- vuldb.com/vuln/416885/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-109149 (third-party-advisory)
- vuldb.com/submit/978621 (third-party-advisory)
- github.com/beautifier/js-beautify/issues/2522 (issue-tracking)
- github.com/beautifier/js-beautify/ (product)
Frequently asked questions
- What is CVE-2026-109149?
- CVE-2026-109149 is a medium-severity vulnerability in Beautifier Js-Beautify, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-10-13.
- How severe is CVE-2026-109149?
- Medium severity. CVSS v3 base score is 5.3 out of 10.