Remote Code Execution through file upload to “$SPLUNK_HOME/var/run/splunk/apptemp“ directory in Splunk Enterprise
Priority MEDIUM 53CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
In Splunk Enterprise versions below 9.3.3, 9.2.5, and 9.1.8, and Splunk Cloud Platform versions below 9.3.2408.104, 9.2.2406.108, 9.2.2403.114, and 9.1.2312.208, a low-privileged user that does not hold the "admin" or "power" Splunk roles could perform a Remote Code Execution (RCE) through a file upload to the "$SPLUNK_HOME/var/run/splunk/apptemp" directory due to missing authorization checks.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.16021 96th percentileScored 2026-11-07
Fix Fixed Splunk Enterprise (Splunk): 9.4.0, 9.3.3, 9.2.5 +1Splunk Cloud Platform (Splunk): 9.3.2408.104, 9.2.2406.108, 9.2.2403.114 +1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Splunk | Splunk Enterprise | 9.4 to before 9.4.0; 9.3 to before 9.3.3; 9.2 to before 9.2.5; 9.1 to before 9.1.8 | 9.4.0, 9.3.3, 9.2.5, 9.1.8 | Patch available | CNA |
| Splunk | Splunk Cloud Platform | 9.3.2408 to before 9.3.2408.104; 9.2.2406 to before 9.2.2406.108; 9.2.2403 to before 9.2.2403.114; 9.1.2312 to before 9.1.2312.208 | 9.3.2408.104, 9.2.2406.108, 9.2.2403.114, 9.1.2312.208 | Patch available | CNA |
- Splunk Enterprise VendorSplunk Affected 9.4 to before 9.4.0; 9.3 to before 9.3.3; 9.2 to before 9.2.5; 9.1 to before 9.1.8 Fixed in 9.4.0, 9.3.3, 9.2.5, 9.1.8 Patch available CNA
- Splunk Cloud Platform VendorSplunk Affected 9.3.2408 to before 9.3.2408.104; 9.2.2406 to before 9.2.2406.108; 9.2.2403 to before 9.2.2403.114; 9.1.2312 to before 9.1.2312.208 Fixed in 9.3.2408.104, 9.2.2406.108, 9.2.2403.114, 9.1.2312.208 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* | 9.1.0 to before 9.1.8; 9.2.0 to before 9.2.5; 9.3.0 to before 9.3.3 | Vulnerable | Splunk |
| cpe:2.3:a:splunk:splunk:9.4.0:*:*:*:enterprise:*:*:* | 9.4.0 | Vulnerable | Splunk |
| cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* | 9.1.2312 to before 9.1.2312.208; 9.2.2403 to before 9.2.2403.114; 9.2.2406.100 to before 9.2.2406.108; 9.3.2408.100 to before 9.3.2408.104 | Vulnerable | Splunk |
- cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions 9.1.0 to before 9.1.8; 9.2.0 to before 9.2.5; 9.3.0 to before 9.3.3 Vulnerable ·Splunk
- cpe:2.3:a:splunk:splunk:9.4.0:*:*:*:enterprise:*:*:* Versions 9.4.0 Vulnerable ·Splunk
- cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* Versions 9.1.2312 to before 9.1.2312.208; 9.2.2403 to before 9.2.2403.114; 9.2.2406.100 to before 9.2.2406.108; 9.3.2408.100 to before 9.3.2408.104 Vulnerable ·Splunk
Remediation
- Fix · CNA Splunk Enterprise (Splunk) Fixed in 9.4.0, 9.3.3, 9.2.5, 9.1.8
- Fix · CNA Splunk Cloud Platform (Splunk) Fixed in 9.3.2408.104, 9.2.2406.108, 9.2.2403.114, 9.1.2312.208
Timeline
- 2026-10-02 Threatist record created from CVE-2025-20229
- 2026-10-03 Alias added: GHSA-wx8m-x35g-mf6x
References
More Splunk vulnerabilities
- TI-2026-16444 Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise KEVCVSS 3.1CRITICAL 9.8
- TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
- TI-2023-24841 Remote code execution (RCE) in Splunk Enterprise through Insecure XML Parsing CVSS 3.1HIGH 8.8
- TI-2023-15979 ‘edit_user’ Capability Privilege Escalation CVSS 3.1HIGH 8.8
- TI-2024-30707 Remote Code Execution (RCE) due to insecure session storage configuration in Splunk Enterprise on Windows CVSS 3.1HIGH 8.8
- TI-2022-21345 Reflected Cross-Site Scripting via the radio template in Splunk Enterprise CVSS 3.1HIGH 8.8
Sources
- CVE-2025-20229 · CVE Program
- CVE-2025-20229 · NVD
- FIRST EPSS
- GHSA-wx8m-x35g-mf6x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences