CVE-2026-76288
Denial of Service (DoS) through Splunk Web Content-Type Header Parsing in Splunk Enterprise
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-400 |
| Vendor | splunk |
| Product | splunk enterprise |
| Published | Oct 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Splunk / Splunk Enterprise
10.4 < 10.4.4 10.2 < 10.2.8 10.0 < 10.0.11 9.4 < 9.4.16
References
Credits
Pedro Cardoso (tvmpt)