UBUNTU-CVE-2026-106444 (CVE-2026-106444)
Vulnerability from osv_ubuntu – Published: 2026-10-06 20:17 – Updated: 2026-10-17 10:01 – Source website
VLAI
Details
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.
Severity
4.7 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjs-handlebars",
"binary_version": "2:0.21.0-5"
},
{
"binary_name": "libjs-handlebars.runtime",
"binary_version": "2:0.21.0-5"
},
{
"binary_name": "ruby-handlebars-assets",
"binary_version": "2:0.21.0-5"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "ruby-handlebars-assets",
"purl": "pkg:deb/ubuntu/ruby-handlebars-assets@2:0.21.0-5?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.15-2",
"2:0.20.2-2",
"2:0.21.0-2",
"2:0.21.0-3",
"2:0.21.0-4",
"2:0.21.0-5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "handlebars",
"binary_version": "3:4.0.10-5"
},
{
"binary_name": "libjs-handlebars",
"binary_version": "3:4.0.10-5"
},
{
"binary_name": "libjs-handlebars.runtime",
"binary_version": "3:4.0.10-5"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "node-handlebars",
"purl": "pkg:deb/ubuntu/node-handlebars@3:4.0.10-5?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3:4.0.10-5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-handlebars-assets",
"binary_version": "2:0.23.2+dfsg-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "ruby-handlebars-assets",
"purl": "pkg:deb/ubuntu/ruby-handlebars-assets@2:0.23.2+dfsg-2?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:0.23.1-1",
"2:0.23.2-2",
"2:0.23.2+dfsg-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "handlebars",
"binary_version": "3:4.7.2-1"
},
{
"binary_name": "libjs-handlebars",
"binary_version": "3:4.7.2-1"
},
{
"binary_name": "libjs-handlebars.runtime",
"binary_version": "3:4.7.2-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "node-handlebars",
"purl": "pkg:deb/ubuntu/node-handlebars@3:4.7.2-1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3:4.1.0-1",
"3:4.5.3-1",
"3:4.7.2-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-handlebars-assets",
"binary_version": "2:0.23.3+dfsg-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "ruby-handlebars-assets",
"purl": "pkg:deb/ubuntu/ruby-handlebars-assets@2:0.23.3+dfsg-2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:0.23.3+dfsg-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "handlebars",
"binary_version": "3:4.7.7+~4.1.0-1"
},
{
"binary_name": "libjs-handlebars",
"binary_version": "3:4.7.7+~4.1.0-1"
},
{
"binary_name": "libjs-handlebars.runtime",
"binary_version": "3:4.7.7+~4.1.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "node-handlebars",
"purl": "pkg:deb/ubuntu/node-handlebars@3:4.7.7+~4.1.0-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3:4.7.6+~4.1.0-2",
"3:4.7.7+~4.1.0-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-handlebars-assets",
"binary_version": "2:0.23.8+dfsg-4"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "ruby-handlebars-assets",
"purl": "pkg:deb/ubuntu/ruby-handlebars-assets@2:0.23.8+dfsg-4?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:0.23.8+dfsg-3",
"2:0.23.8+dfsg-4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "handlebars",
"binary_version": "3:4.7.7+~4.1.0-1"
},
{
"binary_name": "libjs-handlebars",
"binary_version": "3:4.7.7+~4.1.0-1"
},
{
"binary_name": "libjs-handlebars.runtime",
"binary_version": "3:4.7.7+~4.1.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "node-handlebars",
"purl": "pkg:deb/ubuntu/node-handlebars@3:4.7.7+~4.1.0-1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3:4.7.7+~4.1.0-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-handlebars-assets",
"binary_version": "2:0.23.9+dfsg-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "ruby-handlebars-assets",
"purl": "pkg:deb/ubuntu/ruby-handlebars-assets@2:0.23.9+dfsg-1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:0.23.9+dfsg-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "handlebars",
"binary_version": "3:4.7.9-5"
},
{
"binary_name": "libjs-handlebars",
"binary_version": "3:4.7.9-5"
},
{
"binary_name": "libjs-handlebars.runtime",
"binary_version": "3:4.7.9-5"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.10",
"name": "node-handlebars",
"purl": "pkg:deb/ubuntu/node-handlebars@3:4.7.9-5?arch=source\u0026distro=stonking"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3:4.7.7+~4.1.0-1",
"3:4.7.9-5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "handlebars",
"binary_version": "3:4.7.7+~4.1.0-1"
},
{
"binary_name": "libjs-handlebars",
"binary_version": "3:4.7.7+~4.1.0-1"
},
{
"binary_name": "libjs-handlebars.runtime",
"binary_version": "3:4.7.7+~4.1.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "node-handlebars",
"purl": "pkg:deb/ubuntu/node-handlebars@3:4.7.7+~4.1.0-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3:4.7.7+~4.1.0-1"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2026-106444",
"modified": "2026-10-17T10:01:21Z",
"published": "2026-10-06T20:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-106444"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-106444"
},
{
"type": "REPORT",
"url": "https://github.com/handlebars-lang/handlebars.js/security/advisories/GHSA-xw65-4hp5-5hc7"
},
{
"type": "REPORT",
"url": "https://github.com/handlebars-lang/handlebars.js/pull/2185"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-106444"
]
}
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