CVE-2026-20253

Warnung

Medienbericht

EPSS 88.17%
Veröffentlicht 10.06.2026 17:16:21
Zuletzt bearbeitet 16.06.2026 15:16:36
Quelle psirt@cisco.com
CVE-Watchlists
Login
Unerledigt
Login

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

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.

Betroffene Produkte Warnungen 1 Metriken 2 CWE 1 Referenzen 10

NVD 2 VulnDex Vulnerability Enrichment 1

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Splunk ≫ Splunk SwEditionenterprise Version >= 10.0.0 < 10.0.7

Splunk ≫ Splunk SwEditionenterprise Version >= 10.2.0 < 10.2.4

VulnDex Vulnerability Enrichment

Diese Information steht angemeldeten Benutzern zur Verfügung.

18.06.2026: CISA Known Exploited Vulnerabilities (KEV) Catalog

Splunk Enterprise Missing Authentication for Critical Function Vulnerability

Schwachstelle

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.

Beschreibung

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Erforderliche Maßnahmen

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	88.17%	0.997

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
psirt@cisco.com	9.8	3.9	5.9	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-306 Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.