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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-76288

Denial of Service (DoS) through Splunk Web Content-Type Header Parsing in Splunk Enterprise

Description

In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, an unauthenticated user could send a single crafted request to the Splunk Web JavaScript logger endpoint and cause Splunk Web to stop responding to requests. Splunk Web remains unavailable until Splunk Enterprise is restarted. The vulnerability is possible because Splunk Web does not limit request-header parsing before processing the request.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Splunk Splunk Enterprise

  • 10.4 to < 10.4.4affected
  • 10.2 to < 10.2.8affected
  • 10.0 to < 10.0.11affected
  • 9.4 to < 9.4.16affected

References