🛡️ CVE-2026-44966
🟠 CVSS 8.3 — High ✅ No Known Exploit CWE-1321 NVD
8.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity HIGH
CVSS Score 8.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CWE CWE-1321
Public Exploit ✅ No
Source NVD
Published 2026-05-26
Updated 2026-06-09
Modified 2026-06-01
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —
velocity.js — 2.1.5
velocityjs — —

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