What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-13 · updated 2026-10-16
• Weakness: CWE-400

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.

Affected products

• beautifier js-beautify: 1.15.0, 1.15.1, 2.0.0, 2.0.1, 2.0.2, 2.0.3

References

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

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