Security advisory
The serialize-to-js NPM package before version 3.0.1 is vulnerable to Cross-site Scripting (XSS). It does not properly mitigate against unsafe characters in serialized regular expressions. This vulnerability is not affected on Node.js environment since Node.js's implementation of RegExp.prototype.toString() backslash-escapes all forward slashes in regular expressions. If serialized data of regular expression objects are used in an environment other than Node.js, it is affected by this vulnerability.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-16772
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:37 UTC · Revision 1
Source evidence
The serialize-to-js NPM package before version 3.0.1 is vulnerable to Cross-site Scripting (XSS). It does not properly mitigate against unsafe characters in serialized regular expressions. This vulnerability is not affected on Node.js environment since Node.js's implementation of RegExp.prototype.toString() backslash-escapes all forward slashes in regular expressions. If serialized data of regular expression objects are used in an environment other than Node.js, it is affected by this vulnerability.
osv:CVE-2019-16772
Complete source record
{
"id": "bbb0a631ddda5d33971fb52defb2936d9d68e52cd9b18516ffc51d9d4330f736",
"url": "https://osv.dev/vulnerability/CVE-2019-16772",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-16772",
"summary": "The serialize-to-js NPM package before version 3.0.1 is vulnerable to Cross-site Scripting (XSS). It does not properly mitigate against unsafe characters in serialized regular expressions. This vulnerability is not affected on Node.js environment since Node.js's implementation of RegExp.prototype.toString() backslash-escapes all forward slashes in regular expressions. If serialized data of regular expression objects are used in an environment other than Node.js, it is affected by this vulnerability.",
"evidence": "osv:CVE-2019-16772",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-16772",
"aliases": [
"CVE-2019-16772",
"GHSA-3fjq-93xj-3f3f"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/commenthol/serialize-to-js",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "89c82a8d993c122834597f620c50c11a3798500d"
},
{
"fixed": "181d7d583ae5293cd47cc99b14ad13352875f3e3"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:serialize-to-js_project:serialize-to-js:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.0.1"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "181d7d583ae5293cd47cc99b14ad13352875f3e3"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v3.0.0",
"v2.0.1",
"v2.0.0",
"v1.2.2",
"v1.2.1",
"v1.2.0",
"v1.1.2",
"v1.1.1",
"v1.1.0",
"v1.0.0",
"v0.5.0",
"v0.4.0",
"v0.3.1",
"v0.3.0",
"v0.2.0",
"v0.1.2",
"v0.1.1",
"v0.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16772.json"
}
}
],
"modified": "2026-10-20T10:50:47.442694904Z",
"provider": "osv",
"references": [
"https://github.com/commenthol/serialize-to-js/security/advisories/GHSA-3fjq-93xj-3f3f",
"https://github.com/commenthol/serialize-to-js/commit/181d7d583ae5293cd47cc99b14ad13352875f3e3"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-16772",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 382155,
"published_at": "2019-12-07T00:15:11.09+00:00"
}