Improper access control in Splunk Enterprise - CVE-2026-20166
Published: March 13, 2026
Vulnerability identifier: #VU123995
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-20166
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Splunk Inc.
Affected software:
Splunk Enterprise
Splunk Enterprise
Detailed vulnerability description
The vulnerability allows a remote user to gain gain access to sensitive information.
The vulnerability exists due to improper access restrictions in the Discover Splunk Observability Cloud app. A remote user can retrieve the Observability Cloud API access token and gain access to sensitive information.
How to mitigate CVE-2026-20166
Install updates from vendor's website.