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CVE-2026-20202

Improper Input Validation during User Account Creation in Splunk Enterprise PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Splunk / Splunk Enterpriseaffected 10.2 before 10.2.2; affected 10.0 before 10.0.5; affected 9.4 before 9.4.10; affected 9.3 before 9.3.11
Splunk / Splunk Cloud Platformaffected 10.4.2603 before Not Affected; affected 10.3.2512 before 10.3.2512.6; affected 10.2.2510 before 10.2.2510.10; affected 10.1.2507 before 10.1.2507.20; affected 10.0.2503 before 10.0.2503.13; affected 9.3.2411 before 9.3.2411.127

CWE

CWE-176

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.