CVE-2026-76288

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://advisory.splunk.com/advisories/SVD-2026-1007	Vendor Advisory Mitigation

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*

History

30 Oct 2026, 20:47

Type	Values Removed	Values Added
First Time		Splunk splunk Splunk
References	~~() https://advisory.splunk.com/advisories/SVD-2026-1007 -~~	() https://advisory.splunk.com/advisories/SVD-2026-1007 - Vendor Advisory, Mitigation
CPE		cpe:2.3:a:splunk:splunk:::::enterprise:::*

21 Oct 2026, 23:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-21 23:17

Updated : 2026-10-30 20:47

NVD link : CVE-2026-76288

Mitre link : CVE-2026-76288

CVE.ORG link : CVE-2026-76288

JSON object : View

Products Affected

splunk

splunk

CWE

CWE-400

Uncontrolled Resource Consumption

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