CVE-2026-76401

In Splunk Connect for Kafka versions below 2.2.7, an unauthenticated user who can reach the Kafka Connect Representational State Transfer (REST) API could configure timestamp extraction with a crafted regular expression and matching event data to block a Kafka Connect worker thread, stopping event delivery for the affected connector. The vulnerability is possible because timestamp extraction evaluates customer-supplied regular expressions without a time limit. 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) and Data ingestion parameters for Splunk Connect for Kafka (https://help.splunk.com/en/data-management/integrate-data-with-add-ons/splunk-connect-for-kafka/2.2/overview/data-ingestion-parameters-for-splunk-connect-for-kafka) in the Splunk documentation.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://advisory.splunk.com/advisories/SVD-2026-0808	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:splunk:connect_for_kafka:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-19 22:17

Updated : 2026-08-24 18:58

NVD link : CVE-2026-76401

Mitre link : CVE-2026-76401

CVE.ORG link : CVE-2026-76401

JSON object : View

Products Affected

splunk

connect_for_kafka

CWE

CWE-407

Inefficient Algorithmic Complexity

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