CVE-2025-20384
Medium
Description
In Splunk Enterprise versions below 10.0.1, 9.4.6, 9.3.8, and 9.2.10, and Splunk Cloud Platform versions below 10.1.2507.4, 10.0.2503.6, and 9.3.2411.117.125, an unauthenticated attacker can inject American National Standards Institute (ANSI) escape codes into Splunk log files due to improper validation at the /en-US/static/ web endpoint. This may allow them to poison, forge, or obfuscate sensitive log data through specially crafted HTTP requests, potentially impacting log integrity and detection capabilities.
SeverityMedium
CVSS5.3
Exploit probability—
ProductSplunk
PublishedDec 3, 2025
First seenDec 3, 2025
Weakness typeCWE-117CWE-117
How to fix
Update
- splunk splunk9.2.10, 9.3.8, 9.4.6 or later
- splunk splunk_cloud_platform9.3.2411.117, 10.0.2503.6, 10.1.2507.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| splunk splunk | 9.2.0 ≤ v < 9.2.10, 9.3.0 ≤ v < 9.3.8, 9.4.0 ≤ v < 9.4.6, 10.0.0 | 9.2.10, 9.3.8, 9.4.6 |
| splunk splunk_cloud_platform | 9.3.2411 ≤ v < 9.3.2411.117, 10.0.2503 ≤ v < 10.0.2503.6, 10.1.2507 ≤ v < 10.1.2507.4 | 9.3.2411.117, 10.0.2503.6, 10.1.2507.4 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.