CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-20139

In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.8, 9.3.9, and 9.2.12, and Splunk Cloud Platform versions below 10.2.2510.3, 10.1.2507.8, 10.0.2503.9, and 9.3.2411.121, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious payload into the `realname`, `tz`, or `email` parameters of the `/splunkd/__raw/services/authentication/users/username` REST API endpoint when they change a password. This could potentially lead to a client‑side denial‑of‑service (DoS). The malicious payload might significantly slow page load times or render Splunk Web temporarily unresponsive.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.0

EPSS Ranking 14.0%

CVSS Severity

CVSS v3 Score 4.3

References

https://advisory.splunk.com/advisories/SVD-2026-0204

Products affected by CVE-2026-20139

Splunk » Splunk » Version: 10.0.0

cpe:2.3:a:splunk:splunk:10.0.0
Splunk » Splunk » Version: 10.0.1

cpe:2.3:a:splunk:splunk:10.0.1
Splunk » Splunk » Version: 9.2.0

cpe:2.3:a:splunk:splunk:9.2.0
Splunk » Splunk » Version: 9.2.1

cpe:2.3:a:splunk:splunk:9.2.1
Splunk » Splunk » Version: 9.2.10

cpe:2.3:a:splunk:splunk:9.2.10
Splunk » Splunk » Version: 9.2.2

cpe:2.3:a:splunk:splunk:9.2.2
Splunk » Splunk » Version: 9.2.3

cpe:2.3:a:splunk:splunk:9.2.3
Splunk » Splunk » Version: 9.2.4

cpe:2.3:a:splunk:splunk:9.2.4
Splunk » Splunk » Version: 9.2.5

cpe:2.3:a:splunk:splunk:9.2.5
Splunk » Splunk » Version: 9.2.6

cpe:2.3:a:splunk:splunk:9.2.6
Splunk » Splunk » Version: 9.2.7

cpe:2.3:a:splunk:splunk:9.2.7
Splunk » Splunk » Version: 9.2.8

cpe:2.3:a:splunk:splunk:9.2.8
Splunk » Splunk » Version: 9.2.9

cpe:2.3:a:splunk:splunk:9.2.9
Splunk » Splunk » Version: 9.3.0

cpe:2.3:a:splunk:splunk:9.3.0
Splunk » Splunk » Version: 9.3.1

cpe:2.3:a:splunk:splunk:9.3.1
Splunk » Splunk » Version: 9.3.2

cpe:2.3:a:splunk:splunk:9.3.2
Splunk » Splunk » Version: 9.3.3

cpe:2.3:a:splunk:splunk:9.3.3
Splunk » Splunk » Version: 9.3.4

cpe:2.3:a:splunk:splunk:9.3.4
Splunk » Splunk » Version: 9.3.5

cpe:2.3:a:splunk:splunk:9.3.5
Splunk » Splunk » Version: 9.3.6

cpe:2.3:a:splunk:splunk:9.3.6
Splunk » Splunk » Version: 9.3.7

cpe:2.3:a:splunk:splunk:9.3.7
Splunk » Splunk » Version: 9.3.8

cpe:2.3:a:splunk:splunk:9.3.8
Splunk » Splunk » Version: 9.4.0

cpe:2.3:a:splunk:splunk:9.4.0
Splunk » Splunk » Version: 9.4.1

cpe:2.3:a:splunk:splunk:9.4.1
Splunk » Splunk » Version: 9.4.2

cpe:2.3:a:splunk:splunk:9.4.2
Splunk » Splunk » Version: 9.4.3

cpe:2.3:a:splunk:splunk:9.4.3
Splunk » Splunk » Version: 9.4.4

cpe:2.3:a:splunk:splunk:9.4.4
Splunk » Splunk » Version: 9.4.5

cpe:2.3:a:splunk:splunk:9.4.5
Splunk » Splunk » Version: 9.4.6

cpe:2.3:a:splunk:splunk:9.4.6
Splunk » Splunk » Version: 9.4.7

cpe:2.3:a:splunk:splunk:9.4.7
Splunk » Splunk Cloud Platform » Version: Any

cpe:2.3:a:splunk:splunk_cloud_platform:*
Splunk » Splunk Cloud Platform » Version: 10.0.2503

cpe:2.3:a:splunk:splunk_cloud_platform:10.0.2503
Splunk » Splunk Cloud Platform » Version: 10.0.2503.5

cpe:2.3:a:splunk:splunk_cloud_platform:10.0.2503.5
Splunk » Splunk Cloud Platform » Version: 10.1.2507

cpe:2.3:a:splunk:splunk_cloud_platform:10.1.2507
Splunk » Splunk Cloud Platform » Version: 10.1.2507.1

cpe:2.3:a:splunk:splunk_cloud_platform:10.1.2507.1
Splunk » Splunk Cloud Platform » Version: 9.3.2411

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411
Splunk » Splunk Cloud Platform » Version: 9.3.2411.102

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411.102
Splunk » Splunk Cloud Platform » Version: 9.3.2411.103

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411.103
Splunk » Splunk Cloud Platform » Version: 9.3.2411.104

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411.104
Splunk » Splunk Cloud Platform » Version: 9.3.2411.107

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411.107
Splunk » Splunk Cloud Platform » Version: 9.3.2411.108

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411.108
Splunk » Splunk Cloud Platform » Version: 9.3.2411.109

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411.109
Splunk » Splunk Cloud Platform » Version: 9.3.2411.111

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411.111
Splunk » Splunk Cloud Platform » Version: 9.3.2411.116

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411.116
Splunk » Splunk Cloud Platform » Version: 9.3.2411.120

cpe:2.3:a:splunk:splunk_cloud_platform:9.3.2411.120

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-20139

Products

Pricing

Contact Us