Improper access control in Splunk Enterprise - CVE-2026-20164
Published: March 13, 2026
Vulnerability identifier: #VU123985
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:L/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-20164
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 access to sensitive information.
The vulnerability exists due to improper access restrictions. A remote user can access the "/splunkd/__raw/servicesNS/-/-/configs/conf-passwords" REST API endpoint, which exposes the hashed or plaintext password values that are stored in the passwords.conf configuration file
How to mitigate CVE-2026-20164
Install updates from vendor's website.