ubuntu-cve-2019-19919
Vulnerability from osv_ubuntu
Published
2019-12-20 23:15
Modified
2025-10-24 04:48
Summary
Details
Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Object's proto and defineGetter properties, which may allow an attacker to execute arbitrary code through crafted payloads.
Severity
9.8 (Critical)
N/A (UNKNOWN)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"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"
]
}
],
"aliases": [],
"details": "Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Object\u0027s __proto__ and __defineGetter__ properties, which may allow an attacker to execute arbitrary code through crafted payloads.",
"id": "UBUNTU-CVE-2019-19919",
"modified": "2025-10-24T04:48:07Z",
"published": "2019-12-20T23:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-19919"
},
{
"type": "REPORT",
"url": "https://www.npmjs.com/advisories/1164"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19919"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2019-19919"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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