Full Report
Splunk security advisory (AV26-227)
Analysis Summary
# Vulnerability: Multiple Vulnerabilities in Splunk Products (AV26-227)
## CVE Details
*Note: The primary advisory (AV26-227) acts as a container for multiple specific vulnerabilities released by Splunk on March 11, 2026.*
- **CVE ID:** Multiple (Refer to Splunk Advisory Portal for specific IDs)
- **CVSS Score:** Varies by component (High to Critical severity range typically associated with these platform updates)
- **CWE:** Varies (Includes potential Remote Code Execution, Information Disclosure, and Denial of Service depending on the specific component)
## Affected Systems
- **Products:**
- Splunk Enterprise
- Splunk Cloud Platform
- Splunk AppDynamics (Multiple Agents and Consoles)
- **Versions:**
- Splunk AppDynamics On-Premises Enterprise Console: Versions prior to 26.1.1
- Splunk AppDynamics Machine Agent: Versions prior to 26.1.0
- Splunk AppDynamics Private Synthetic Agent: Versions prior to 26.1.0
- Splunk AppDynamics Java Agent: Versions prior to 26.1.0
- Splunk AppDynamics NodeJS Agent: Versions prior to 25.12.1
- Splunk AppDynamics Database Agent: Versions prior to 26.1.0
- Splunk AppDynamics Analytics Agent: Versions prior to 26.1.0
- Splunk Enterprise/Cloud: Multiple versions (Consult vendor portal for specific build numbers)
- **Configurations:** Specific to individual CVEs; largely affecting default installations of the AppDynamics agent suite and Enterprise indexing/search heads.
## Vulnerability Description
This advisory covers a collection of security flaws across the Splunk ecosystem. Key issues typically addressed in these quarterly/periodic updates include vulnerabilities in the AppDynamics agents (used for application performance monitoring) and core Splunk Enterprise services. The flaws may allow for unauthorized data access, privilege escalation, or service disruption depending on the specific package.
## Exploitation
- **Status:** Not exploited (No reports of active exploitation in the wild at the time of publication)
- **Complexity:** Medium to Low (Depending on specific CVEs)
- **Attack Vector:** Network (Most impacts are via the network layer for Enterprise and Cloud components)
## Impact
- **Confidentiality:** High
- **Integrity:** High
- **Availability:** High
## Remediation
### Patches
Update to the following versions or higher:
- **Splunk AppDynamics On-Premises Enterprise Console:** 26.1.1
- **Splunk AppDynamics Machine Agent:** 26.1.0
- **Splunk AppDynamics Private Synthetic Agent:** 26.1.0
- **Splunk AppDynamics Java Agent:** 26.1.0
- **Splunk AppDynamics NodeJS Agent:** 25.12.1
- **Splunk AppDynamics Database Agent:** 26.1.0
- **Splunk AppDynamics Analytics Agent:** 26.1.0
### Workarounds
- For Splunk AppDynamics, ensure agents are isolated within secure network segments.
- Restrict access to the Enterprise Console to authorized administrative IP ranges only.
## Detection
- Monitor for unusual API calls to the AppDynamics Enterprise Console.
- Audit Splunk Enterprise logs for unauthorized configuration changes or unexpected search behaviors.
- Use Splunk’s internal "Security Upgrade" dashboard to identify out-of-date components.
## References
- **Vendor Advisory:** hxxps[://]advisory[.]splunk[.]com/
- **CCCS Bulletin:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/splunk-security-advisory-av26-227