CVE-2026-20253
Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
In Splunk Enterprise versions below 10.2.4 and 10.0.7, and Splunk Cloud Platform versions below 10.4.2604.3 and 10.2.2510.14, an unauthenticated user could create or truncate arbitrary files through a PostgreSQL sidecar service endpoint.<br><br>The vulnerability exists because the PostgreSQL sidecar service endpoint lacks authentication controls, allowing any network-reachable user to invoke file operations without credentials.
| CWE | CWE-306 |
| Vendor | splunk |
| Product | splunk enterprise |
| Published | Jun 10, 2026 |
| Last Updated | Jun 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Splunk / Splunk Enterprise
10.2 < 10.2.4 10.0 < 10.0.7
Splunk / Splunk Cloud Platform
10.4.2604 < 10.4.2604.3 10.2.2510 < 10.2.2510.14
References
Credits
Alex Hordijk (hordalex)