{
  "cve": "CVE-2026-76183",
  "enrichment": {
    "affected": [
      {
        "configurations": [
          {
            "platform": null,
            "status": "affected",
            "versions": {
              "scheme": "semver",
              "value": "[11.0.0-M1,11.0.25]"
            }
          },
          {
            "platform": null,
            "status": "affected",
            "versions": {
              "scheme": "semver",
              "value": "[10.1.0-M1,10.1.59]"
            }
          },
          {
            "platform": null,
            "status": "affected",
            "versions": {
              "scheme": "semver",
              "value": "[9.0.0-M1,9.0.121]"
            }
          },
          {
            "platform": null,
            "status": "affected",
            "versions": {
              "scheme": "semver",
              "value": "[8.5.0,8.5.100]"
            }
          },
          {
            "platform": null,
            "status": "affected",
            "versions": {
              "scheme": "semver",
              "value": "[7.0.43,7.0.109]"
            }
          },
          {
            "platform": null,
            "status": "affected",
            "versions": {
              "scheme": "semver",
              "value": "[0,7.0.43)"
            }
          }
        ],
        "enrichment": {
          "confidence": 95.0,
          "confidence_source": "inferred",
          "scores": [
            {
              "score": 95.0,
              "source": "inferred"
            },
            {
              "score": 100.0,
              "source": "matching"
            }
          ]
        },
        "original": {
          "product": "Apache Tomcat",
          "source": "cna",
          "vendor": "Apache Software Foundation"
        },
        "product": "tomcat",
        "vendor": "apache"
      }
    ],
    "created": "2026-09-23T13:30:05.041025+00:00",
    "updated": "2026-09-23T18:00:07.954733+00:00",
    "vendors": [
      "apache",
      "apache$PRODUCT$tomcat"
    ]
  },
  "mitre": {
    "cpes": [],
    "created": "2026-09-23T11:16:09.907000+00:00",
    "description": "Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.\n\n\n\nThe following versions were EOS at the time the CVE was created but are \nknown to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.\n\n\n\n\nUsers are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {},
      "cvssV4_0": {}
    },
    "mitre_repo_path": "cves/2026/76xxx/CVE-2026-76183.json",
    "references": [
      "https://lists.apache.org/thread/45mxk8nj2q8pkhct6lfxkvtm2jpywrsp"
    ],
    "title": "Apache Tomcat: Bypass of security constraints for WebSocket endpoints",
    "updated": "2026-09-23T18:10:41.803000+00:00",
    "vendors": [],
    "weaknesses": [
      "CWE-289"
    ]
  },
  "nvd": {
    "cpes": [],
    "created": "2026-09-23T12:17:06.537000+00:00",
    "description": "Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.\n\n\n\nThe following versions were EOS at the time the CVE was created but are \nknown to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.\n\n\n\n\nUsers are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {
        "score": 9.8,
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
      },
      "cvssV4_0": {}
    },
    "nvd_repo_path": "2026/CVE-2026-76183.json",
    "references": [
      "http://www.openwall.com/lists/oss-security/2026/09/23/21",
      "https://lists.apache.org/thread/45mxk8nj2q8pkhct6lfxkvtm2jpywrsp"
    ],
    "title": null,
    "updated": "2026-09-23T19:19:14.877000+00:00",
    "vendors": [],
    "weaknesses": [
      "CWE-289"
    ]
  },
  "opencve": {
    "changes": [
      {
        "created": "2026-09-23T11:45:00+00:00",
        "data": [
          {
            "details": {
              "new": "Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.\n\n\n\nThe following versions were EOS at the time the CVE was created but are \nknown to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.\n\n\n\n\nUsers are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.",
              "old": null
            },
            "type": "description"
          },
          {
            "details": {
              "new": "Apache Tomcat: Bypass of security constraints for WebSocket endpoints",
              "old": null
            },
            "type": "title"
          },
          {
            "details": {
              "added": [
                "CWE-289"
              ],
              "removed": []
            },
            "type": "weaknesses"
          },
          {
            "details": {
              "added": [
                "https://lists.apache.org/thread/45mxk8nj2q8pkhct6lfxkvtm2jpywrsp"
              ],
              "removed": []
            },
            "type": "references"
          }
        ],
        "id": "13e8ff35-6460-46fe-a2a2-65a3a7d14a9a"
      },
      {
        "created": "2026-09-23T14:45:00+00:00",
        "data": [
          {
            "details": [
              "apache",
              "apache$PRODUCT$tomcat"
            ],
            "type": "first_time"
          },
          {
            "details": {
              "added": [
                "apache",
                "apache$PRODUCT$tomcat"
              ],
              "removed": []
            },
            "type": "vendors"
          }
        ],
        "id": "8e3b0f65-5b16-44f6-8920-16590deca11b"
      },
      {
        "created": "2026-09-23T16:30:00+00:00",
        "data": [
          {
            "details": {
              "added": {
                "cvssV3_1": {
                  "score": 9.8,
                  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                "ssvc": {
                  "options": {
                    "Automatable": "yes",
                    "Exploitation": "none",
                    "Technical Impact": "total"
                  },
                  "version": "2.0.3"
                }
              },
              "removed": {},
              "updated": {}
            },
            "type": "metrics"
          }
        ],
        "id": "83432b9a-7472-42a1-8e74-bf87d5a4bf3b"
      },
      {
        "created": "2026-09-23T19:30:00+00:00",
        "data": [
          {
            "details": {
              "added": [
                "http://www.openwall.com/lists/oss-security/2026/09/23/21"
              ],
              "removed": []
            },
            "type": "references"
          }
        ],
        "id": "10a1ef74-7449-41e4-84bf-09975c1db4be"
      }
    ],
    "cpes": {
      "data": [],
      "providers": []
    },
    "created": {
      "data": "2026-09-23T11:16:09.907000+00:00",
      "provider": "mitre"
    },
    "description": {
      "data": "Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.\n\n\n\nThe following versions were EOS at the time the CVE was created but are \nknown to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.\n\n\n\n\nUsers are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.",
      "provider": "mitre"
    },
    "metrics": {
      "cvssV2_0": {
        "data": {},
        "provider": null
      },
      "cvssV3_0": {
        "data": {},
        "provider": null
      },
      "cvssV3_1": {
        "data": {
          "score": 9.8,
          "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        },
        "provider": "vulnrichment"
      },
      "cvssV4_0": {
        "data": {},
        "provider": null
      },
      "epss": {
        "data": {},
        "provider": null
      },
      "kev": {
        "data": {},
        "provider": null
      },
      "ssvc": {
        "data": {
          "options": {
            "Automatable": "yes",
            "Exploitation": "none",
            "Technical Impact": "total"
          },
          "version": "2.0.3"
        },
        "provider": "vulnrichment"
      },
      "threat_severity": {
        "data": null,
        "provider": null
      }
    },
    "references": {
      "data": [
        "http://www.openwall.com/lists/oss-security/2026/09/23/21",
        "https://lists.apache.org/thread/45mxk8nj2q8pkhct6lfxkvtm2jpywrsp"
      ],
      "providers": [
        "mitre",
        "nvd"
      ]
    },
    "title": {
      "data": "Apache Tomcat: Bypass of security constraints for WebSocket endpoints",
      "provider": "mitre"
    },
    "updated": {
      "data": "2026-09-23T19:19:14.877000+00:00",
      "provider": "nvd"
    },
    "vendors": {
      "data": [
        "apache",
        "apache$PRODUCT$tomcat"
      ],
      "providers": [
        "enrichment"
      ]
    },
    "weaknesses": {
      "data": [
        "CWE-289"
      ],
      "providers": [
        "mitre",
        "nvd"
      ]
    }
  },
  "vulnrichment": {
    "cpes": [],
    "created": "2026-09-23T11:16:09.907000+00:00",
    "description": "Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.\n\n\n\nThe following versions were EOS at the time the CVE was created but are \nknown to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.\n\n\n\n\nUsers are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {
        "score": 9.8,
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
      },
      "cvssV4_0": {},
      "kev": {},
      "ssvc": {
        "options": {
          "Automatable": "yes",
          "Exploitation": "none",
          "Technical Impact": "total"
        },
        "version": "2.0.3"
      }
    },
    "references": [],
    "title": "Apache Tomcat: Bypass of security constraints for WebSocket endpoints",
    "updated": "2026-09-23T15:33:05.471000+00:00",
    "vendors": [],
    "vulnrichment_repo_path": "2026/76xxx/CVE-2026-76183.json",
    "weaknesses": []
  }
}