Vulnerability · Published Oct 13, 2026 · Assigned by VulDB
CVE-2026-109149beautifier js-beautify memory allocation
Medium 5.3
In plain English
A medium-severity uncontrolled resource consumption in js-beautify from beautifier. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.5%top 55.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | node-js-beautify | no fix listed | UBUNTU-CVE-2026-109149 |
| Ubuntu:24.04:LTS | node-js-beautify | no fix listed | UBUNTU-CVE-2026-109149 |
| Ubuntu:26.04:LTS | node-js-beautify | no fix listed | UBUNTU-CVE-2026-109149 |
| Ubuntu:26.10 | node-js-beautify | no fix listed | UBUNTU-CVE-2026-109149 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| beautifier | js-beautify | 1.15.01.15.12.0.02.0.12.0.22.0.3 |
Weakness: CWE-789, CWE-400 · Vector: 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
References
- VDB-416885 | beautifier js-beautify memory allocation vdb-entry
- VDB-416885 | CTI Indicators (IOB, IOC) signature, permissions-required
- CVE-2026-109149 | CVE Analysis and Report third-party-advisory
- Submit #978621 | beautifier js-beautify 1.15.1 Denial of Service third-party-advisory
- https://github.com/beautifier/js-beautify/issues/2522 issue-tracking
- https://github.com/beautifier/js-beautify/ product