High
Security advisory
Knwl.js is a Javascript library that parses through text for dates, times, phone numbers, emails, places, and more. Versions 1.0.2 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-26306
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:09 UTC · Revision 1
Source evidence
Knwl.js is a Javascript library that parses through text for dates, times, phone numbers, emails, places, and more. Versions 1.0.2 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available.
osv:CVE-2020-26306
Complete source record
{
"id": "f1c93acacac7d6706ca8898cfc251193691e3d61331201f8112a9c90ecf1dd53",
"url": "https://osv.dev/vulnerability/CVE-2020-26306",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-26306",
"summary": "Knwl.js is a Javascript library that parses through text for dates, times, phone numbers, emails, places, and more. Versions 1.0.2 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available.",
"evidence": "osv:CVE-2020-26306",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-26306",
"aliases": [
"CVE-2020-26306",
"GHSA-68qg-g787-3rp5"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Green"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/benhmoore/knwl",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "cbefd0ed35af9a7fa9e606f75aebc1b67b4afcc5"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.0.2"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
"versions": [
"v1.0.2",
"v1.0",
"v0.1",
"0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26306.json"
}
}
],
"modified": "2026-10-20T10:52:57.722172967Z",
"provider": "osv",
"references": [
"https://securitylab.github.com/advisories/GHSL-2020-296-redos-Knwl.js/",
"https://github.com/benhmoore/Knwl/issues/106"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-26306",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 384096,
"published_at": "2024-10-26T21:15:13.883+00:00"
}