https://reddit.com/r/cybersecurity/comments/1ua3npz/cisa_adds_splunk_enterprise_rce_cve202620253_to/: CISA Adds Splunk Enterprise RCE (CVE-2026-20253) to KEV - CVSS 9.8. How are your SOCs handling the PostgreSQL sidecar mitigation?
Published Jun 19, 2026
·Updated
Affected Software
1 affected component
Splunk Splunk Enterprise
Frequently Asked Questions
1
What is the severity of CVE-2026-20253?
CVE-2026-20253 has a CVSS score of 9.8, indicating a critical severity level.
2
How do I fix CVE-2026-20253?
To fix CVE-2026-20253, update your Splunk Enterprise software to the latest version that includes the security patches addressing this vulnerability.
3
What impact does CVE-2026-20253 have on Splunk Enterprise?
CVE-2026-20253 allows unauthenticated remote code execution through the PostgreSQL sidecar service, potentially compromising system integrity.
4
Is CVE-2026-20253 a local or remote vulnerability?
CVE-2026-20253 is classified as a remote vulnerability, enabling attackers to exploit it without local access.
5
Are there workarounds for mitigating CVE-2026-20253?
While the primary recommendation is to apply patches, consider disabling the PostgreSQL sidecar service until patched if immediate remediation is not possible.