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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-14326

A vulnerability was found in RESTEasy, where RootNode incorrectly caches routes. This issue results in hash flooding, leading to slower requests with higher CPU time spent searching and adding the entry. This flaw allows an attacker to cause a denial of service.

Products
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Affected versions
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Fixed versions
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CVEs
CVE-2020-14326
Confirmed fixed CVEs
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Updated in this feed
1 Nov 2026, 06:46 UTC · Revision 1

Source evidence

CVE-2020-14326

core-osv · Original source

Published 2 Jun 2021, 12:15 UTC

A vulnerability was found in RESTEasy, where RootNode incorrectly caches routes. This issue results in hash flooding, leading to slower requests with higher CPU time spent searching and adding the entry. This flaw allows an attacker to cause a denial of service.

osv:CVE-2020-14326
Complete source record
{
  "id": "e80148a8a23a128ae28a42e1fd6b96282bac2e7fdd2cf821c495af930127c528",
  "url": "https://osv.dev/vulnerability/CVE-2020-14326",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-14326",
    "summary": "A vulnerability was found in RESTEasy, where RootNode incorrectly caches routes. This issue results in hash flooding, leading to slower requests with higher CPU time spent searching and adding the entry. This flaw allows an attacker to cause a denial of service.",
    "evidence": "osv:CVE-2020-14326",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-14326",
      "aliases": [
        "CVE-2020-14326",
        "GHSA-37g7-8vjj-pjpj"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/resteasy/resteasy",
              "type": "GIT",
              "events": [
                {
                  "introduced": "357f43a6253a460c2bc6499b5d211a8dc1206f81"
                },
                {
                  "fixed": "628605570edc59472a0682b2cecd0c4b77d9ef2f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:redhat:resteasy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.2.0"
                      },
                      {
                        "fixed": "4.5.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.4.2.Final",
            "4.5.4.Final",
            "4.5.3.Final",
            "4.5.2.Final",
            "4.5.1.Final",
            "4.5.0.Final",
            "4.4.1.Final",
            "4.4.0.Final",
            "4.4.0.CR1",
            "4.3.0.Final",
            "4.2.0.Final"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14326.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:44.359063191Z",
      "provider": "osv",
      "references": [
        "https://security.netapp.com/advisory/ntap-20210713-0001/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1855826"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-14326",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435856,
  "published_at": "2021-06-02T12:15:08.227+00:00"
}