CVE-2026-20253

EUVD-2026-36088
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
ciscoCNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
splunksplunk
10.2 ≤
𝑥
< 10.2.4
CNA
splunksplunk
10.0 ≤
𝑥
< 10.0.7
CNA
splunksplunk
10.4.2604 ≤
𝑥
< 10.4.2604.3
CNA
splunksplunk
10.2.2510 ≤
𝑥
< 10.2.2510.14
CNA