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.
References
| Link | Resource |
|---|---|
| https://advisory.splunk.com/advisories/SVD-2026-0808 | Vendor Advisory |
Configurations
History
No history.
Information
Published : 2026-08-19 22:17
Updated : 2026-08-24 18:46
NVD link : CVE-2026-76403
Mitre link : CVE-2026-76403
CVE.ORG link : CVE-2026-76403
JSON object : View
Products Affected
splunk
- connect_for_kafka
CWE
CWE-295
Improper Certificate Validation