EUVD-2026-63114
GHSA-9m2v-75c6-7v47
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Network-reachable, no auth required, no interaction; confidentiality rated Low because only runtime/build metadata is disclosed, not credentials or user data.
Primary rating from Vendor (cisco).
CVSS VectorVendor: cisco
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
3DescriptionCVE.org
In Splunk Enterprise 10.4 versions below 10.4.2, an unauthenticated user could read Prometheus service metrics from the Edge Processor SPL2 Preview sidecar, including service details that expose relevant runtime and build metadata for the sidecar. The vulnerability does not affect Splunk Enterprise versions below 10.4. The information disclosure is possible because the Prometheus metrics endpoint in the Edge Processor SPL2 Preview sidecar lacks authentication, which lets any client that can reach the sidecar retrieve the metrics without credentials. For more information see About Splunk sidecars (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/splunk-sidecars/about-splunk-sidecars) in the Splunk documentation.
AnalysisAI
Unauthenticated information disclosure in Splunk Enterprise 10.4.x exposes Prometheus service metrics from the Edge Processor SPL2 Preview sidecar to any network-reachable client. The sidecar's Prometheus metrics endpoint lacks authentication, allowing retrieval of runtime and build metadata without credentials. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network-level reachability to the Prometheus metrics endpoint of the Edge Processor SPL2 Preview sidecar on a Splunk Enterprise 10.4.0 or 10.4.1 instance. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-assigned CVSS score of 7.5 (C:H) reflects a worst-case framing of the confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker with network access to a Splunk Enterprise 10.4.x host sends a plain HTTP GET request to the Prometheus metrics endpoint on the Edge Processor SPL2 Preview sidecar. The sidecar returns all available metrics without requesting credentials, exposing runtime environment details such as Go version, sidecar build version, and service identifiers that the attacker can use to fingerprint the deployment and identify version-specific follow-on attack paths. … |
| Remediation | Upgrade Splunk Enterprise to version 10.4.2 or later, which addresses the missing authentication on the Prometheus metrics endpoint per the vendor advisory at https://advisory.splunk.com/advisories/SVD-2026-0801. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct a comprehensive inventory of all Splunk Enterprise 10.4.x instances and determine which have the Edge Processor SPL2 Preview sidecar enabled and exposed to the network. …
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Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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