CVE-2026-20255
5.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Summary
In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.13, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious classic dashboard that exfiltrates sensitive data to an external server.
The vulnerability exists because URL validation on the external content dialog is incomplete, which can allow for requests to untrusted domains when a user interacts with a crafted dashboard.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Splunk | Splunk Enterprise | 10.2 < 10.2.4 | affected |
| Splunk | Splunk Enterprise | 10.0 < 10.0.7 | affected |
| Splunk | Splunk Enterprise | 9.4 < 9.4.12 | affected |
| Splunk | Splunk Enterprise | 9.3 < 9.3.13 | affected |
| Splunk | Splunk Cloud Platform | 10.3.2512 < 10.3.2512.13 | affected |
| Splunk | Splunk Cloud Platform | 10.2.2510 < 10.2.2510.15 | affected |
| Splunk | Splunk Cloud Platform | 10.1.2507 < 10.1.2507.23 | affected |
| Splunk | Splunk Cloud Platform | 9.3.2411 < 9.3.2411.132 | affected |
Weaknesses
- CWE-20: The product does not validate or incorrectly validates input that can affect the control flow or data flow of a program.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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