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CVE-2026-20202

6.6 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 6.6 · splunkNVD modified 2026-10-26 22:10

Affected (CPE criteria) 2

  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*

References 1