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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-76401

CVE-2026-76401: 1 tracked advisory record across Splunk. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Splunk

1 advisory
  • Advisory severityMedium5.9

    Medium [CVE-2026-76401] Regular Expression Denial of Service (DoS) through the REST API in Splunk Connect for Kafka

    CVE-2026-76401Source published Source updated

    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 ( ) and Data ingestion parameters for Splunk Connect for Kafka ( ) in the Splunk documentation.

    Affected products in this advisory
    • Splunk Connect for Kafka
    Source-reported affected versions
    • Splunk Connect for Kafka 2.2 before 2.2.7
    Source-reported fixed versions
    • 2.2.7
    Mitigation guidance
    • 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.
    Workarounds
    • 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.
    Full advisory and evidenceOpen source bulletin

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