CVE-2026-20253

CVE-2026-20253 Lab Environment Splunk Enterprise Pre-Auth RCE via PostgreSQL Sidecar Service | ---|--- CVE| CVE-2026-20253 CVSS| 9.8 Critical Type| Unauthenticated Remote Code Execution CWE| CWE-306: Missing Authentication for Critical Function Product| Splunk Enterprise 10.0.x / 10.2.x DISCLAIME...

watchTowr-vs-Splunk-CVE-2026-20253

CVE-2026-20253 Splunk Pre-Auth RCE Splunk Pre-Auth RCE 1day Detection Artifact Generator Tool Detection in Action Detection Artifact Generator attempts to access the /v1/postgres/recovery/backup endpoint of PostgreSQL Sidecar Service to verify if it is accessible or not: 400 response - probably...

CVE-2026-20253

🚨 CVE-2026-20253 - Critical Splunk Enterprise Unauthenticated File Creation Vulnerability Unauthenticated arbitrary file creation and truncation vulnerability affecting Splunk Enterprise and Splunk Cloud Platform. 📖 Executive Summary CVE-2026-20253 is a critical vulnerability in Splunk Enterprise...

CVE-2026-20253

CVE-2026-20253 — Splunk Enterprise Pre-Auth RCE Lab Unauthenticated Arbitrary File Creation and Truncation via PostgreSQL Sidecar CVSS 9.8 · Critical · CWE-306 · Actively exploited CISA KEV ⚠️ Disclaimer This repository is intended strictly for educational and authorised security research purposes...

EUVD-2026-107653

In Splunk Enterprise versions below 10.4.4 and 10.2.8, a user who does not hold the "admin" or "power" Splunk roles could derive the PostgreSQL sidecar database superuser password and run arbitrary operating system commands as the user account running Splunk Enterprise on search head cluster...

CVE-2026-76298

In Splunk Enterprise versions below 10.4.4 and 10.2.8, a user who does not hold the "admin" or "power" Splunk roles could derive the PostgreSQL sidecar database superuser password and run arbitrary operating system commands as the user account running Splunk Enterprise on search head cluster...

CVE-2026-76298 Use of Hard-coded Cryptographic Key in the PostgreSQL Sidecar Service in Splunk Enterprise

In Splunk Enterprise versions below 10.4.4 and 10.2.8, a user who does not hold the "admin" or "power" Splunk roles could derive the PostgreSQL sidecar database superuser password and run arbitrary operating system commands as the user account running Splunk Enterprise on search head cluster...

CVE-2026-76298

In Splunk Enterprise versions below 10.4.4 and 10.2.8 , a security flaw exists in the PostgreSQL sidecar service due to the use of a hard-coded cryptographic key . Specifically, the service derives a privileged database password from the search head cluster identifier, which is exposed in search ...

PT-2026-120856

Name of the Vulnerable Software and Affected Versions Splunk Enterprise versions prior to 10.4.4 Splunk Enterprise versions prior to 10.2.8 Description A user without admin or power roles can derive the PostgreSQL sidecar database superuser password. This occurs because the PostgreSQL sidecar...

Exploit for Missing Authentication for Critical Function in Splunk

CVE-2026-20253 Lab Environment Splunk Enterprise Pre-Auth R...

Exploit for Missing Authentication for Critical Function in Splunk

CVE-2026-20253 — Splunk Enterprise Pre-Auth RCE Lab Unaut...

Vulnerabilities in Splunk Enterprise and Splunk Cloud Platform

Splunk has identified several vulnerabilities in Splunk Enterprise and Splunk Cloud Platform. These vulnerabilities concern various components of Splunk Enterprise and Splunk Cloud Platform. Splunk has classified the vulnerability with the identifier CVE-2026-20253 as a critical vulnerability in...

Splunk Enterprise & Cloud Platform - Unrestricted File Upload

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.The vulnerability exists because the PostgreSQL sidecar...

Splunk Enterprise Missing Authentication for Critical Function Vulnerability

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...

VulnCheck KEV: CVE-2026-20253

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...

Critical Splunk Enterprise Flaw Lets Attackers Run Code Without Authentication

Splunk has released security updates to address a critical security flaw in Splunk Enterprise that could be exploited to conduct unauthenticated file operations and even remote code execution. The vulnerability, tracked as CVE-2026-20253 , is rated 9.8 on the CVSS scoring system. "In Splunk...

CVE-2026-20253

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,...

CVE-2026-20253

Summary: CVE-2026-20253 affects Splunk Enterprise and Splunk Cloud Platform due to an unauthenticated PostgreSQL sidecar service endpoint that can create or truncate arbitrary files when exposed on the network. Affected software/versions (per sources): Splunk Enterprise < 10.2.4 and < 10.0....

CVE-2026-20253 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,...

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.The vulnerability exists because the PostgreSQL sidecar...