---
id: CVE-2026-76290
title: >-
  Denial of Service (DoS) through Unauthenticated Package Downloads over the
  REST API in Splunk Enterprise
summary: >-
  In Splunk Enterprise versions below 10.4.4, 10.2.8, and 10.0.11, an
  unauthenticated user could send repeated requests to the Edge Processor
  package download endpoint in the Splunk Pipeline Builders app. The requests
  could cause the Splun…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-400
vendor: Splunk
product: Splunk Enterprise
affected:
  - enterprise >= 10.4 < 10.4.4
  - enterprise >= 10.2 < 10.2.8
  - enterprise >= 10.0 < 10.0.11
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T22:51:52.864Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-76290'
references:
  - url: 'https://advisory.splunk.com/advisories/SVD-2026-1007'
tags:
  - cve.org
ingestedAt: '2026-10-21T23:20:10.330Z'
---

## Overview

In Splunk Enterprise versions below 10.4.4, 10.2.8, and 10.0.11, an unauthenticated user could send repeated requests to the Edge Processor package download endpoint in the Splunk Pipeline Builders app. The requests could cause the Splunk daemon to consume excessive system resources and potentially stop responding.
The vulnerability is possible because the endpoint accepts package download requests without authentication and reads and base64-encodes the complete package in memory for each request.
After upgrading, prepare all existing Edge Processor instances, turn on authentication for Edge Processor package downloads, and restart Splunk Enterprise. For more information, see Enable authentication for Edge Processor package downloads (https://help.splunk.com/en/data-management/process-data-at-the-edge/use-edge-processors-for-splunk-enterprise/10.4/administer-edge-processors/enable-authentication-for-edge-processor-package-downloads).

## Affected

- `enterprise >= 10.4 < 10.4.4`
- `enterprise >= 10.2 < 10.2.8`
- `enterprise >= 10.0 < 10.0.11`

## Remediation

Upgrade Splunk Enterprise to versions 10.4.4, 10.2.8, 10.0.11, and 9.4.16 or higher.

### Workarounds

Turn off or remove the Splunk Pipeline Builders app. This action makes the Edge Processor solution unavailable.
For more information see [Manage app and add-on objects](https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.2/meet-splunk-apps/manage-app-and-add-on-objects) in the Splunk documentation.