CVE-2025-20384
Unauthenticated Log Injection in Splunk Enterprise
Severity
Medium 5.3
CVSS 3.1
Exploited
Not listed
EPSS
0.004
31.3th percentile
Discovered by
Not disclosed
Published
Dec 3, 2025
Assigned by cisco
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.
Weakness: CWE-117
Affected products
| Vendor | Product | Category | Matched by |
|---|
No product mapping yet — this CVE is pending taxonomy review.
Vendor-reported affected versions (2)
- Splunk · Splunk Enterprise
- Splunk · Splunk Cloud Platform
Credit
STÖK / Fredrik Alexandersson