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

Splunk Enterprise · CVE-2026-76288
0 news outlets0 CERTs and agencies0 researchers

What is it?

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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
7.5
EPSS
0.4%
First seen
1 d ago
Status
corroborated

All Splunk vulnerabilities