{"schemaVersion":3,"id":"CVE-2026-76403","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"In Splunk Connect for Kafka versions below 2.2.7, an unauthenticated user positioned in the network path could read or alter all relevant data sent from the connector when Kerberos authentication is used with Hypertext Transfer Protocol (HTTP) Event Collector in Splunk Enterprise. The vulnerability is possible because the Kerberos authentication path does not apply the configured certificate validation options when it builds the HTTP client. For more information see Install Splunk Connect for Kafka (https://help.splunk.com/en/data-management/integrate-data-with-add-ons/splunk-connect-for-kafka/2.2/install/install-splunk-connect-for-kafka), Security configurations for Splunk Connect for Kafka (https://help.splunk.com/en/splunk-enterprise/get-data-in/splunk-connect-for-kafka/2.2/configure/security-configurations-for-splunk-connect-for-kafka), and Set up and use HTTP Event Collector with configuration files (https://help.splunk.com/en/splunk-enterprise/get-data-in/get-started-with-getting-data-in/9.4/get-data-with-http-event-collector/set-up-and-use-http-event-collector-with-configuration-files) in the Splunk documentation.","dates":{"published":"2026-08-19T21:35:16.866Z","modified":"2026-08-20T15:26:31.304Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.4,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.4,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.4,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00244,"percentile":0.14614,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.05099999999999998,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00193},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00244,"percentile":0.14614}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00193,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00244,"percentile":null},{"date":"2026-10-10T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