CVE-2026-76355 Unauthenticated Information Disclosure through an Edge Processor Service Endpoint in Splunk Enterprise
Unauthenticated attackers can read Edge Processor pipeline configurations via a REST API endpoint when the feature is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76355?
CVE-2026-76355 is a high-severity missing authorization vulnerability in Splunk Splunk, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-306
Which versions are affected by CVE-2026-76355?
It affects 1 product.
Products include Splunk Splunk.
How do I fix CVE-2026-76355?
No fix has been published for CVE-2026-76355 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-76355 being exploited?
There is no known exploitation of CVE-2026-76355 in the wild and no public exploit code.
Other vulnerabilities in Splunk Splunk
- CVE-2026-20253 Splunk Enterprise Missing Authentication for Critical Function
- CVE-2026-76268 Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
- CVE-2026-76284 Improper Neutralization in Splunk Enterprise
- CVE-2026-76285 Improper Adherence to Coding Standards in Splunk Enterprise
- CVE-2017-17067 Auth bypass in n/a
Sources
Also known as GHSA-g8fg-v59g-8cmc.