CVE-2026-20202
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
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_usercould 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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Splunk | Splunk Enterprise | 10.2 < 10.2.2 | affected |
| Splunk | Splunk Enterprise | 10.0 < 10.0.5 | affected |
| Splunk | Splunk Enterprise | 9.4 < 9.4.10 | affected |
| Splunk | Splunk Enterprise | 9.3 < 9.3.11 | affected |
| Splunk | Splunk Cloud Platform | 10.4.2603 < Not Affected | affected |
| Splunk | Splunk Cloud Platform | 10.3.2512 < 10.3.2512.6 | affected |
| Splunk | Splunk Cloud Platform | 10.2.2510 < 10.2.2510.10 | affected |
| Splunk | Splunk Cloud Platform | 10.1.2507 < 10.1.2507.20 | affected |
| Splunk | Splunk Cloud Platform | 10.0.2503 < 10.0.2503.13 | affected |
| Splunk | Splunk Cloud Platform | 9.3.2411 < 9.3.2411.127 | affected |
Weaknesses
- CWE-176: The software does not properly handle when an input contains Unicode encoding.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
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