node-chart.js — security advisory
This affects the package chart.js before 2.9.4. The options parameter is not properly sanitized when it is processed. When the options are processed, the existing options (or the defaults options) are deeply merged with provided options. However, during this operation, the keys of the object being set are not checked, leading to a prototype pollution.
- Products
- node-chart.js
- Affected versions
- Not specified
- Fixed versions
- 2.9.4+dfsg+~cs2.10.1-1
- CVEs
- CVE-2020-7746
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:52 UTC · Revision 1
Source evidence
This affects the package chart.js before 2.9.4. The options parameter is not properly sanitized when it is processed. When the options are processed, the existing options (or the defaults options) are deeply merged with provided options. However, during this operation, the keys of the object being set are not checked, leading to a prototype pollution.
osv:DEBIAN-CVE-2020-7746
node-chart.js
Fixed versions: 2.9.4+dfsg+~cs2.10.1-1
node-chart.js
Fixed versions: 2.9.4+dfsg+~cs2.10.1-1
node-chart.js
Fixed versions: 2.9.4+dfsg+~cs2.10.1-1
Complete source record
{
"id": "266ff237507af542e41bfbe151d21c4db5346dcf56935944c9c1d46c0efcde9a",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-7746",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-7746",
"summary": "This affects the package chart.js before 2.9.4. The options parameter is not properly sanitized when it is processed. When the options are processed, the existing options (or the defaults options) are deeply merged with provided options. However, during this operation, the keys of the object being set are not checked, leading to a prototype pollution.",
"evidence": "osv:DEBIAN-CVE-2020-7746",
"products": [
{
"name": {
"value": "node-chart.js",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.9.4+dfsg+~cs2.10.1-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "node-chart.js",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.9.4+dfsg+~cs2.10.1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "node-chart.js",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.9.4+dfsg+~cs2.10.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2020-7746",
"aliases": [
"DEBIAN-CVE-2020-7746"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.4+dfsg+~cs2.10.1-1"
}
]
}
],
"package": {
"name": "node-chart.js",
"purl": "pkg:deb/debian/node-chart.js?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-7746.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.4+dfsg+~cs2.10.1-1"
}
]
}
],
"package": {
"name": "node-chart.js",
"purl": "pkg:deb/debian/node-chart.js?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-7746.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.4+dfsg+~cs2.10.1-1"
}
]
}
],
"package": {
"name": "node-chart.js",
"purl": "pkg:deb/debian/node-chart.js?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-7746.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:02:45.681923849Z",
"provider": "osv",
"upstream": [
"CVE-2020-7746"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-7746"
]
},
"related_cves": [
{
"value": "CVE-2020-7746",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 452947,
"published_at": "2020-10-29T08:15:12.007+00:00"
}