CVE-2026-44966 — Velocity.js: Prototype Pollution in #set path assignment
Velocity.js is a JavaScript implementation of the Apache Velocity template engine. In 2.1.5 and earlier, a prototype pollution vulnerability was discovered in velocityjs. This i…
Published: 2026-05-26 · CVSS: 8.3 · CVSS 3.1
Velocity.js is a JavaScript implementation of the Apache Velocity template engine. In 2.1.5 and earlier, a prototype pollution vulnerability was discovered in velocityjs. This issue occurs during the processing of #set directives in Velocity templates. If an application renders a template controlled by an attacker, it is possible to modify Object.prototype, potentially leading to Denial of Service (DoS) or Remote Code Execution (RCE) depending on the server environment.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7