CVE-2026-76288 Splunk Enterprise - Denial of Service

Splunk Enterprise < 10.4.4, 10.2.8, 10.0.11, and 9.4.16 contains a denial of service caused by unlimited request-header parsing in the Splunk Web JavaScript logger endpoint, letting unauthenticated users cause service unavailability, exploit requires sending a crafted request.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
21 October 2026
Updated
22 October 2026
Weakness
CWE-400

Vendor fix

Update to versions 10.4.4, 10.2.8, 10.0.11, 9.4.16 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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