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Technology4h 8m ago

Splunk published an advisory on June 10th regarding CVE-2026-20253, a pre-authentication remote code execution vulnerability in its Enterprise product's PostgreSQL Sidecar Service.

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Who
Splunk, watchTowr Labs
What
Splunk published an advisory on June 10th regarding CVE-2026-20253, a pre-authentication remote code execution vulnerability in its Enterprise product's PostgreSQL Sidecar Service.
When
Fri, 12 Jun 2026 20:37:11 GMT · 4h 8m ago
Where
Worldwide ·
Why
The vulnerability exists because the PostgreSQL sidecar service endpoint lacks authentication controls, allowing any network-reachable user to invoke file operations without credentials.
The Frontline Impact

How this affects you

This critical vulnerability, affecting Splunk Enterprise versions 10 and above, particularly those deployed on AWS, allows unauthenticated attackers to execute arbitrary code, potentially compromising sensitive data and systems.

Story chain

6 events in this thread
  1. Technology4h 8m ago
    Splunk published an advisory for CVE-2026-20253, detailing a pre-authentication Remote Code Execution (RCE) vulnerability in its PostgreSQL Sidecar Service.
    Open article
  2. Technology4h 8m ago
    Splunk published an advisory for CVE-2026-20253, a pre-authentication RCE vulnerability in Splunk Enterprise's PostgreSQL Sidecar Service.
    Open article
  3. Technology4h 8m ago
    Splunk published an advisory for CVE-2026-20253, a pre-authentication remote code execution vulnerability in the PostgreSQL Sidecar Service of Splunk Enterprise.
    Open article
  4. Technology4h 8m ago
    Splunk published an advisory for CVE-2026-20253, a pre-authentication Remote Code Execution vulnerability in Splunk Enterprise.
    Open article
  5. Currently Reading4h 8m ago
    Splunk published an advisory on June 10th regarding CVE-2026-20253, a pre-authentication remote code execution vulnerability in its Enterprise product's PostgreSQL Sidecar Service.
  6. Technology4h 8m ago
    Splunk published an advisory for CVE-2026-20253, detailing a pre-authentication remote code execution vulnerability in the PostgreSQL Sidecar Service.
    Open article

Verified Sources & Citations