Vulnerability in Splunk Enterprise

[ Description ]Official description

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).

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• CERT-FR22 Oct 2026CERTFR-2026-AVI-1366

  Multiple vulnerabilities in Splunk products Translated from French

  Multiple vulnerabilities have been discovered in Splunk products. Some of them allow an attacker to cause arbitrary code execution, a breach of data confidentiality and remote cross-site scripting (XSS).

  CVE-2026-76298CVE-2026-42308CVE-2026-76295+108 more CVEs
• BSI CERT-Bund21 Oct 2026WID-SEC-2026-4102

  Splunk Splunk Enterprise: Multiple vulnerabilities Translated from German

  Risk highCVE-2026-76294CVE-2026-76289CVE-2026-76300+13 more CVEs

[ References ]References

• advisory.splunk.com/advisories/SVD-2026-1007