🛡️ CVE-2026-20202
🟡 CVSS 6.6 — Medium ✅ No Known Exploit CWE-176 NVD
6.6
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.6, 10.2.2510.10, 10.1.2507.20, 10.0.2503.13, and 9.3.2411.127, a user who holds a role that contains the high-privilege capability `edit_user`could create a specially crafted username that includes a null byte or a non-UTF-8 percent-encoded byte due to improper input validation.

This could lead to inconsistent conversion of usernames into a proper format for storage and account management inconsistencies, such as being unable to edit or delete affected users.

Details

Severity MEDIUM
CVSS Score 6.6
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE CWE-176
Public Exploit ✅ No
Source NVD
Published 2026-04-15
Updated 2026-06-02
Modified 2026-04-17
Fix URL N/A

Affected Packages

Software From version Fixed in
splunk 10.2.0 10.2.2
splunk-cloud-platform 10.3.2512 10.3.2512.6

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