Quick answers
- Is CVE-2026-76355 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-76355 being exploited in the wild.
- How severe is CVE-2026-76355?
- High severity, with a CVSS score of 7.5, published 19 August 2026.
- Which products and versions are affected?
- Splunk Enterprise 10.4.0 to 10.4.1.
- Is there a fix for CVE-2026-76355?
- A patch was published on 2026-08-19: Fixed in version 10.4.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-76355 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-76355?
- Check whether you run Splunk. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability exists in the Edge Processor service endpoint, which lacks proper authentication controls on its REST API. An unauthenticated attacker can directly access the endpoint to retrieve pipeline configuration information when the Edge Processor feature is enabled. The attack requires network access to the REST API but no authentication credentials or user interaction. Successful exploitation allows an attacker to enumerate and extract configuration details that could be used for reconnaissance or to identify further attack opportunities. The vulnerability is specific to Splunk Enterprise 10.4.0–10.4.1 and has been patched in version 10.4.2.
Affected products
- Splunk Enterprise 10.4.0 to 10.4.1
Timeline
- 2026-08-19: disclosed
- 2026-08-19: patched: Fixed in version 10.4.2