CVE-2026-109149
beautifier js-beautify memory allocation
beautifier js-beautify
CVSS
6.9MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.52%Chance of exploitation activity in the next 30 days, higher than 43% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 6
- js-beautifyaffected: 1.15.0CVE List
- js-beautifyaffected: 1.15.1CVE List
- js-beautifyaffected: 2.0.0CVE List
- js-beautifyaffected: 2.0.1CVE List
- js-beautifyaffected: 2.0.2CVE List
- js-beautifyaffected: 2.0.3CVE List
References 6
- vuldb.com/cve/CVE-2026-109149Advisoryvia CVE List
- vuldb.com/submit/978621Advisoryvia CVE List
- vuldb.com/vuln/416885Referencevia CVE List
- vuldb.com/vuln/416885/ctiReferencevia CVE List
- github.com/beautifier/js-beautify/issues/2522Referencevia CVE List
- github.com/beautifier/js-beautify/Referencevia CVE List