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CVE-2025-20379 is a privilege escalation vulnerability in Splunk Enterprise and Splunk Cloud Platform. It affects Splunk Enterprise versions below 10.0.1, 9.4.5, 9.3.7, and 9.2.9. It also affects Splunk Cloud Platform versions below 9.3.2411.116, 9.3.2408.124, 10.0.2503.5, and 10.1.2507.1. The flaw allows low-privileged users without “admin” or “power” roles to bypass SPL safeguards. They can execute risky commands via saved searches with higher privileges. Exploitation targets the “/services/streams/search” endpoint. The “q” parameter for search queries is manipulated. Attackers use character encoding in the REST path to circumvent restrictions. For example, encoding special characters like slashes or quotes bypasses input validation. This allows injection of risky SPL commands such as “| runcmd” or “| dbquery”. These commands can perform system-level operations or access sensitive data. The attack requires phishing a victim to initiate a request from their browser. This leverages the victim’s authenticated session and higher privileges. The vulnerability stems from improper access control and input sanitization. It enables cross-site request forgery (CSRF) to trigger malicious searches. By crafting a specially encoded URL, attackers bypass endpoint safeguards. The saved search mechanism is abused to persist and execute commands. This leads to privilege escalation within the Splunk environment. Patches address the encoding bypass and enforce proper privilege checks.
Platform: Splunk Enterprise/Cloud
Version: Multiple affected versions
Vulnerability: Privilege escalation bypass
Severity: Critical
Date: 11/12/2025
Prediction: Patches available 2025
What Undercode Say:
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curl -v “https://
splunk show version
grep -i version /opt/splunk/etc/splunk.version
echo “Check for encoding bypass”
python3 -c “import urllib.parse; print(urllib.parse.quote(‘‘))”
How Exploit:
Phishing with encoded URL.
Bypass SPL safeguards.
Execute risky commands.
Protection from this CVE
Update to patched versions.
Enforce access controls.
Monitor suspicious searches.
Impact
Unauthorized command execution.
Data breach risk.
System compromise.
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Sources:
Reported By: nvd.nist.gov
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