{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone21:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone22:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone23:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone24:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone25:*:*:*:*:*:*",
              "cpe:2.3:a:apache:tomcat:11.0.0:milestone26:*:*:*:*:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "9.0.92"
              },
              {
                "fixed": "9.0.117"
              },
              {
                "introduced": "10.1.22"
              },
              {
                "fixed": "10.1.54"
              },
              {
                "introduced": "11.0.1"
              },
              {
                "fixed": "11.0.21"
              },
              {
                "introduced": "11.0.0-milestone14"
              },
              {
                "last_affected": "11.0.0-milestone14"
              },
              {
                "introduced": "11.0.0-milestone15"
              },
              {
                "last_affected": "11.0.0-milestone15"
              },
              {
                "introduced": "11.0.0-milestone16"
              },
              {
                "last_affected": "11.0.0-milestone16"
              },
              {
                "introduced": "11.0.0-milestone17"
              },
              {
                "last_affected": "11.0.0-milestone17"
              },
              {
                "introduced": "11.0.0-milestone18"
              },
              {
                "last_affected": "11.0.0-milestone18"
              },
              {
                "introduced": "11.0.0-milestone19"
              },
              {
                "last_affected": "11.0.0-milestone19"
              },
              {
                "introduced": "11.0.0-milestone20"
              },
              {
                "last_affected": "11.0.0-milestone20"
              },
              {
                "introduced": "11.0.0-milestone21"
              },
              {
                "last_affected": "11.0.0-milestone21"
              },
              {
                "introduced": "11.0.0-milestone22"
              },
              {
                "last_affected": "11.0.0-milestone22"
              },
              {
                "introduced": "11.0.0-milestone23"
              },
              {
                "last_affected": "11.0.0-milestone23"
              },
              {
                "introduced": "11.0.0-milestone24"
              },
              {
                "last_affected": "11.0.0-milestone24"
              },
              {
                "introduced": "11.0.0-milestone25"
              },
              {
                "last_affected": "11.0.0-milestone25"
              },
              {
                "introduced": "11.0.0-milestone26"
              },
              {
                "last_affected": "11.0.0-milestone26"
              }
            ],
            "source": [
              "CPE_RANGE",
              "CPE_STRING"
            ]
          },
          "events": [
            {
              "introduced": "b6ca266795a4245f3c3308a619987136ad46e19a"
            },
            {
              "fixed": "f892e52577feef83aff57d34c2b4be61a5a68524"
            },
            {
              "introduced": "fd9c0bb1f0a7e586daabfda625ef50827bcfddf3"
            },
            {
              "fixed": "8ec9fde54ce6bda64027759389dd755b1b875edc"
            },
            {
              "introduced": "6c56147c3966fde5ae34aab2b253593e8700a28c"
            },
            {
              "fixed": "1d6b501b493c11ee6fdebae911c67ca214e28c82"
            },
            {
              "introduced": "9108a1f6776f7211f5cd27e80b7b5a6e98116b01"
            }
          ],
          "repo": "https://github.com/apache/tomcat",
          "type": "GIT"
        }
      ],
      "versions": [
        "11.0.0-milestone14",
        "11.0.0-milestone15",
        "11.0.0-milestone16",
        "11.0.0-milestone17",
        "11.0.0-milestone18",
        "11.0.0-milestone19",
        "11.0.0-milestone20",
        "11.0.0-milestone21",
        "11.0.0-milestone22",
        "11.0.0-milestone23",
        "11.0.0-milestone24",
        "11.0.0-milestone25",
        "11.0.0-milestone26"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "apache",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34500.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "11.0.0-M14"
          },
          {
            "last_affected": "11.0.20"
          },
          {
            "introduced": "10.1.22"
          },
          {
            "last_affected": "10.1.53"
          },
          {
            "introduced": "9.0.92"
          },
          {
            "last_affected": "9.0.116"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "11.0.0-M14"
          },
          {
            "fixed": "11.0.20"
          },
          {
            "introduced": "10.1.22"
          },
          {
            "fixed": "10.1.53"
          },
          {
            "introduced": "9.0.92"
          },
          {
            "fixed": "9.0.116"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116.\n\nUsers are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fixes the issue.",
  "id": "CVE-2026-34500",
  "modified": "2026-07-08T05:38:54.039451569Z",
  "published": "2026-04-09T19:36:52.857Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/09/29"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34500.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34500"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled"
}