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CVE-2026-20253

Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise PUBLISHED

Description (CNA)

In Splunk Enterprise 10.2 versions below 10.2.4 and 10 versions below 10.0.7, an unauthenticated user could create or truncate arbitrary files through a PostgreSQL sidecar service endpoint. The vulnerability exists because the PostgreSQL sidecar service endpoint lacks authentication controls, allowing any network-reachable user to invoke file operations without credentials. Splunk Enterprise versions 9.4 and earlier are not affected. If you cannot immediately upgrade to a fixed version, you can mitigate this vulnerability by disabling the PostgreSQL sidecar service.

Affected (CNA)

Vendor / productVersions
Splunk / Splunk Enterpriseaffected 10.2 before 10.2.4; affected 10.0 before 10.0.7

CWE

CWE-306

References

ADP enrichment

CISA-ADP

No English description supplied.