Security advisory

{
  "id": "ae70777aebec913f4ffc35c5d2bb9c8eb187549b25da8b9143dd1c55374e8719",
  "url": "https://osv.dev/vulnerability/CVE-2018-8020",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-8020",
    "summary": "Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 has a flaw that does not properly check OCSP pre-produced responses, which are lists (multiple entries) of certificate statuses. Subsequently, revoked client certificates may not be properly identified, allowing for users to authenticate with revoked certificates to connections that require mutual TLS. Users not using OCSP checks are not affected by this vulnerability.",
    "evidence": "osv:CVE-2018-8020",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-8020",
      "aliases": [
        "CVE-2018-8020"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/tomcat-native",
              "type": "GIT",
              "events": [
                {
                  "introduced": "71090a48b31816e3d5a0646be5c3e7b2b533bf07"
                },
                {
                  "last_affected": "b78d639697912862696e13c2ee17480766421e29"
                },
                {
                  "introduced": "7ad1dc6624569d88278ed12fd593ad78b6ec4930"
                },
                {
                  "last_affected": "4ba17069969930029bbf52fef12a9bf9fbad4d38"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:tomcat_native:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.1.23"
                      },
                      {
                        "last_affected": "1.1.34"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:apache:tomcat_native:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.0"
                      },
                      {
                        "last_affected": "1.2.16"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-8020.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:28.341270222Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3E",
        "https://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2%40%3Cdev.tomcat.apache.org%3E",
        "https://lists.apache.org/thread.html/r831e0548fad736a98140d0b3b7dc575af0c50faea0b266434ba813cc%40%3Cdev.rocketmq.apache.org%3E",
        "https://lists.apache.org/thread.html/rb25b42f666d2cac5e6e6b3f771faf60d1f1aa58073dcdd8db14edf8a%40%3Cdev.rocketmq.apache.org%3E",
        "https://lists.apache.org/thread.html/rcddf723a4b4117f8ed6042e9ac25e8c5110a617bab77694b61b14833%40%3Cdev.rocketmq.apache.org%3E",
        "https://lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db12b54220%40%3Cdev.tomcat.apache.org%3E",
        "https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d%40%3Cdev.tomcat.apache.org%3E",
        "https://access.redhat.com/errata/RHSA-2018:2469",
        "https://access.redhat.com/errata/RHSA-2018:2470",
        "https://lists.debian.org/debian-lts-announce/2018/08/msg00023.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-8020",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 432029,
  "published_at": "2018-07-31T13:29:00.827+00:00"
}