---
id: 7676
title: "Splunk Enterprise Unauthenticated Arbitrary File Operations/RCE (CVE-2026-20253): Overview and Takeaways"
cve: CVE-2026-20253
source_domain: netspi.com
source_url: "https://www.netspi.com/blog/executive-blog/critical-vulnerability/cve-2026-20253-splunk-enterprise-overview-and-takeaways/"
published_at: "2026-06-15T00:00:00Z"
tags: ["rce", "postgresql", "poc", "splunk", "patch-now", "auth-bypass", "cve-2026-20253"]
phying_url: "https://phying.com/item/7676"
lang: en
---

# Splunk Enterprise Unauthenticated Arbitrary File Operations/RCE (CVE-2026-20253): Overview and Takeaways

## Summary

CVE-2026-20253 (CVSS 9.8) exposes an unauthenticated PostgreSQL sidecar endpoint in Splunk Enterprise 10.0.x/10.2.x, allowing file writes that chain to RCE via lo_export; a public PoC exists.

## Intelligence Metadata

- **Sources:** netspi.com
- **CVE:** CVE-2026-20253
- **Published:** 2026-06-15T00:00:00Z
- **Original:** https://www.netspi.com/blog/executive-blog/critical-vulnerability/cve-2026-20253-splunk-enterprise-overview-and-takeaways/
- **Phying News:** https://phying.com/item/7676