Splunk Enterprise up to 10.4.1 Edge Processor missing authentication

Summaryinfo

A vulnerability was found in Splunk Enterprise up to 10.4.1 and classified as problematic. This affects an unknown part of the component Edge Processor. The manipulation results in missing authentication. This vulnerability is identified as CVE-2026-76355. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Splunk Enterprise up to 10.4.1. Affected is an unknown code of the component Edge Processor. The manipulation with an unknown input leads to a missing authentication vulnerability. CWE is classifying the issue as CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. This is going to have an impact on confidentiality. CVE summarizes:

In Splunk Enterprise 10.4 versions below 10.4.2, an unauthenticated user could retrieve the information contained in Edge Processor pipeline configurations through a Representational State Transfer (REST) API endpoint when Edge Processor is turned on. The vulnerability does not affect versions prior to 10.4. The vulnerability exists because the Edge Processor service endpoint lacks authentication controls. For more information see System architecture of the Edge Processor solution (https://help.splunk.com/en/splunk-enterprise/process-data-at-the-edge/use-edge-processors-for-splunk-enterprise/10.4/how-the-edge-processor-solution-works/system-architecture-of-the-edge-processor-solution) in the Splunk documentation.

The advisory is shared for download at advisory.splunk.com. This vulnerability is traded as CVE-2026-76355 since 08/19/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

Upgrading to version 10.4.2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Log Management Software

Vendor

• Splunk

Name

• Enterprise

Version

• 10.4.0
• 10.4.1

License

• commercial

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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