How CVE-2026-20253 Turns Splunk’s PostgreSQL Sidecar Into an Open Door

CVE-2026-20253 is a CVSS 9.8 pre-auth flaw in Splunk Enterprise's PostgreSQL sidecar service. An unauthenticated attacker can write files and chain the primitive to RCE. A public PoC exists; no workaround, patch only.

How CVE-2026-20253 Turns Splunk’s PostgreSQL Sidecar Into an Open Door on Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses.



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How CVE-2026-20253 Turns Splunk’s PostgreSQL Sidecar Into an Open Door How CVE-2026-20253 Turns Splunk’s PostgreSQL Sidecar Into an Open Door Reviewed by Divyansh Saxena on June 17, 2026 Rating: 5

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