Handlebars provides the power necessary to let users build semantic templates. From 4.0.0 until 4.7.10, Handlebars.precompile() uses quotedString() in lib/handlebars/compiler/code-gen.js to emit static template text into generated JavaScript without escaping sequences that terminate an enclosing HTML script element. When an application precompiles attacker-controlled template text and embeds the generated source directly in an inline script element, a closing script delimiter can end the element and cause following attacker-controlled markup to be parsed and executed. Ordinary server-side rendering and precompiled templates served as external JavaScript files are not affected. This issue is fixed in version 4.7.10.
References
Configurations
No configuration.
History
06 Oct 2026, 20:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-10-06 20:17
Updated : 2026-10-07 13:58
NVD link : CVE-2026-106444
Mitre link : CVE-2026-106444
CVE.ORG link : CVE-2026-106444
JSON object : View
Products Affected
No product.
CWE
CWE-116
Improper Encoding or Escaping of Output
