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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-26306

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

CVE-2020-26306

core-osv · Original source

Published 26 Oct 2024, 21:15 UTC

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"
}