CVE-2026-76271

In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a low-privileged user that does not hold the "admin" or "power" Splunk roles could cause a denial of service against a Representational State Transfer (REST) API endpoint in the Discover Splunk Observability Cloud app. The vulnerability is possible because the app uses an inefficient regular expression to validate input submitted through the endpoint. For more information see About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access), Splunk Observability Cloud previews (https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.4/observability/splunk-observability-cloud-previews), and restmap.conf (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/configuration-file-reference/10.4.0-configuration-file-reference/restmap.conf) in the Splunk documentation. Splunk Enterprise versions 9.4.x are not affected.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://advisory.splunk.com/advisories/SVD-2026-1001	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:::*

History

14 Oct 2026, 12:11

Type	Values Removed	Values Added
References	~~() https://advisory.splunk.com/advisories/SVD-2026-1001 -~~	() https://advisory.splunk.com/advisories/SVD-2026-1001 - Vendor Advisory, Mitigation
CPE		cpe:2.3:a:splunk:splunk:::::enterprise:::*
First Time		Splunk splunk Splunk

07 Oct 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-07 21:17

Updated : 2026-10-14 12:11

NVD link : CVE-2026-76271

Mitre link : CVE-2026-76271

CVE.ORG link : CVE-2026-76271

JSON object : View

Products Affected

splunk

splunk

CWE

CWE-407

Inefficient Algorithmic Complexity

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