CVE-2026-76288 — Denial of Service (DoS) through Splunk Web Content-Type Header Parsing in Splunk Enterprise
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…
Published: 2026-10-21 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7