CVE-2026-20253CISA KEVEPSS p99.9%

CVE-2026-20253Splunk Enterprise Missing Authentication for Critical Function Vulnerability

Splunk / Enterprise

Description

Splunk Enterprise contains a missing authentication for critical function vulnerability which could allow an unauthenticated user to create or truncate arbitrary files through a PostgreSQL sidecar service endpoint.

Scoring

CVSS 9.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS96.94% probability of exploitation · percentile 99.9% · 2026-09-26T12:00:22Z
Last modified2026-07-23

CISA KEV entry

Added to KEV: 2026-06-18

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Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.