CVE-2026-20166 (GCVE-0-2026-20166)
Vulnerability from cvelistv5 – Published: 2026-03-11 16:18 – Updated: 2026-03-12 16:19
VLAI?
Title
Sensitive Information Disclosure in Discover Splunk Observability Cloud app for Splunk Enterprise
Summary
In Splunk Enterprise versions below 10.2.1 and 10.0.4, and Splunk Cloud Platform versions below 10.2.2510.5, 10.1.2507.16, and 10.0.2503.12, a low-privileged user that does not hold the "admin" or "power" Splunk roles could retrieve the Observability Cloud API access token through the Discover Splunk Observability Cloud app due to improper access control.
This vulnerability does not affect Splunk Enterprise versions below 9.4.9 and 9.3.10 because the Discover Splunk Observability Cloud app does not come with Splunk Enterprise.
Severity ?
5.4 (Medium)
CWE
- CWE-200 - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Splunk | Splunk Enterprise |
Affected:
10.2 , < 10.2.1
(custom)
Affected: 10.0 , < 10.0.4 (custom) |
|||||||
|
|||||||||
Credits
Will Zgoda, Splunk
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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