{"id":"CVE-2026-76268","title":"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 execut…","summary":"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 execut…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-306"],"vendor":"splunk","product":"splunk","affected":["splunk >= 10.2.0, < 10.2.7","splunk >= 10.4.0, < 10.4.3"],"patched":["splunk 10.4.3"],"published":"2026-10-07","updated":"2026-10-14","sourceUpdated":"2026-10-14T12:20:41.540","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76268","references":[{"url":"https://advisory.splunk.com/advisories/SVD-2026-1001","label":"psirt@cisco.com"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.04795,"epssPercentile":0.91892,"exploits":{"github":1,"githubRepos":["https://github.com/murrez/CVE-2026-76268"],"nuclei":["CVE-2026-76268"],"checkedAt":"2026-10-27T19:12:25.887Z"},"exploitAvailable":true,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-08T13:36:26.303970Z"},"ingestedAt":"2026-10-07T21:54:15.093Z","slug":"CVE-2026-76268","body":"## Overview\n\nIn 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.\n\nSplunk Enterprise versions 10.0.x and 9.4.x are not affected.\n\n## Affected\n\n- `splunk >= 10.2.0, < 10.2.7`\n- `splunk >= 10.4.0, < 10.4.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `splunk 10.4.3`","depth":"abyssal","depthScore":67,"depthScoreParts":{"impact":53.9,"likelihood":1,"exploitation":12,"ransomware":0},"changes":[{"seq":220130,"id":"CVE-2026-76268","ts":1791980996595,"field":"exploit_available","old":"false","new":"true"}]}