CVE-2026-20253
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.8
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS probability
- 96.94%
- CISA KEV
- Known exploited vulnerability
- CWE
- CWE-306
- Published
- 2026-06-10
- Last modified
- 2026-06-20
Affected products
- Splunk Splunk Enterprise
- Splunk Splunk Enterprise
- Splunk Splunk Cloud Platform
- Splunk Splunk Cloud Platform
Weakness type
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