CVE-2018-12115: Node.js

High severity, CVSS 7.5. EPSS: 8.1% chance of exploitation in the next 30 days.

In all versions of Node.js prior to 6.14.4, 8.11.4 and 10.9.0 when used with UCS-2 encoding (recognized by Node.js under the names `'ucs2'`, `'ucs-2'`, `'utf16le'` and `'utf-16le'`), `Buffer#write()` can be abused to write outside of the bounds of a single `Buffer`. Writes that start from the second-to-last position of a buffer cause a miscalculation of the maximum length of the input bytes to be written.

Affected products

• Node.js Node.js: before 6.14.4 (fixed in 6.14.4); from 8.0.0, before 8.11.4 (fixed in 8.11.4); from 10.0.0, before 10.9.0 (fixed in 10.9.0)
• Red Hat Openshift Container Platform: version 3.11 only

Published 2018-08-21. Last modified 2026-06-17.