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CVE-2026-76268

9.8 CRITICAL

Published 2026-10-07 · Updated 2026-10-09

AI risk analysis

Summary
This vulnerability allows unauthenticated users to execute arbitrary commands on the affected Splunk Enterprise server via the Patroni REST API, posing a significant risk to system security.
Exploitability
Exploitation is relatively straightforward for an attacker with network access to the REST API, as no authentication is required for critical configuration operations.
Blast radius
If exploited, this vulnerability could lead to complete compromise of the affected Splunk Enterprise server, potentially allowing attackers to control the system and access sensitive data.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Upgrade to Splunk Enterprise version 10.4.3 or later, or apply the relevant patch for versions 10.2.7 and earlier.
rceauth-bypasswebapi

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

In Splunk Enterprise versions below 10.4.3 and 10.2.7, an unauthenticated user with network access to the Patroni Representational State Transfer (REST) Application Programming Interface (API) on a search head cluster member could execute attacker-controlled operating-system commands. The vulnerability is possible because this interface does not require authentication for critical configuration operations. For more information see Sidecar configuration settings (https://help.splunk.com/en/data-management/splunk-enterprise-admin-manual/10.2/splunk-sidecars/sidecar-configuration-settings) in the Splunk documentation. Splunk Enterprise versions 10.0.x and 9.4.x are not affected.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-306

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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