{"cve":{"cve_id":"CVE-2026-76268","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.004,"epss_percentile":0.32615,"epss_as_of":"2026-10-15","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.\n\nSplunk Enterprise versions 10.0.x and 9.4.x are not affected.","published_at":"2026-10-07T20:46:31.281000Z","last_modified_at":"2026-10-14T12:20:41.540000Z","cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-306"],"nvd_references":["https://advisory.splunk.com/advisories/SVD-2026-1001"],"vuln_status":"Analyzed","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-10-07T22:37:29.222028Z","updated_at":"2026-10-15T05:15:06.890595Z"},"effective_severity":"CRITICAL","badges":["poc"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"splunk","vendor_name":"splunk","product_slug":"splunk","product_name":"splunk","version_start":"10.2.0","version_start_inclusive":true,"version_end":"10.2.7","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*"},{"vendor_slug":"splunk","vendor_name":"splunk","product_slug":"splunk-enterprise","product_name":"Splunk Enterprise","version_start":"10.4","version_start_inclusive":true,"version_end":"10.4.3","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-enterprise:10.4:10.4.3"},{"vendor_slug":"splunk","vendor_name":"splunk","product_slug":"splunk-enterprise","product_name":"Splunk Enterprise","version_start":"10.2","version_start_inclusive":true,"version_end":"10.2.7","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-enterprise:10.2:10.2.7"}],"exploit_refs":[{"source":"nuclei","kind":"nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-76268.yaml","title":"Splunk Enterprise Patroni REST API - Missing Authentication RCE","author":"DhiyaneshDk","disclosed_at":null}],"news":[],"references":[{"url":"https://advisory.splunk.com/advisories/SVD-2026-1001","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-10-07T20:46:31.281000Z","label":"CVE published","source":null},{"type":"poc_available","at":"2026-10-16T05:01:21.123768Z","label":"Public PoC available","source":"nuclei"}]}