CVE-2026-20202
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.<br><br>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.
How to fix
- splunk splunk9.3.11, 9.4.10, 10.0.5, 10.2.2 or later
- splunk splunk_cloud_platform9.3.2411.127, 10.0.2503.13, 10.1.2507.20, 10.2.2510.10, 10.3.2512.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| splunk splunk | 9.3.0 ≤ v < 9.3.11, 9.4.0 ≤ v < 9.4.10, 10.0.0 ≤ v < 10.0.5, 10.2.0 ≤ v < 10.2.2 | 9.3.11, 9.4.10, 10.0.5, 10.2.2 |
| splunk splunk_cloud_platform | 9.3.2411 ≤ v < 9.3.2411.127, 10.0.2503 ≤ v < 10.0.2503.13, 10.1.2507 ≤ v < 10.1.2507.20, 10.2.2510 ≤ v < 10.2.2510.10, 10.3.2512 ≤ v < 10.3.2512.6 | 9.3.2411.127, 10.0.2503.13, 10.1.2507.20, 10.2.2510.10, 10.3.2512.6 |
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