CVE-2026-20139
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Client-Side Denial of Service (DoS) through ''/splunkd/__raw/services/authentication/users/username'' REST API endpoint in Splunk Enterprise
In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.8, 9.3.9, and 9.2.12, and Splunk Cloud Platform versions below 10.2.2510.3, 10.1.2507.8, 10.0.2503.9, and 9.3.2411.121, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious payload into the `realname`, `tz`, or `email` parameters of the `/splunkd/__raw/services/authentication/users/username` REST API endpoint when they change a password. This could potentially lead to a client‑side denial‑of‑service (DoS). The malicious payload might significantly slow page load times or render Splunk Web temporarily unresponsive.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Splunk Enterprise
- Vendor
- Splunk
- Product
- Splunk Enterprise
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 10.0 | affected | custom | 10.0.2 | Unavailable | None listed |
| 9.4 | affected | custom | 9.4.8 | Unavailable | None listed |
| 9.3 | affected | custom | 9.3.9 | Unavailable | None listed |
| 9.2 | affected | custom | 9.2.12 | Unavailable | None listed |
Splunk Cloud Platform
- Vendor
- Splunk
- Product
- Splunk Cloud Platform
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 10.2.2510 | affected | custom | 10.2.2510.3 | Unavailable | None listed |
| 10.1.2507 | affected | custom | 10.1.2507.8 | Unavailable | None listed |
| 10.0.2503 | affected | custom | 10.0.2503.9 | Unavailable | None listed |
| 9.3.2411 | affected | custom | 9.3.2411.121 | Unavailable | None listed |