{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-76268",
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "state": "PUBLISHED",
        "assignerShortName": "cisco",
        "dateReserved": "2026-08-19T12:02:03.620Z",
        "datePublished": "2026-10-07T20:46:31.281Z",
        "dateUpdated": "2026-10-07T20:46:31.281Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "product": "Splunk Enterprise",
                    "vendor": "Splunk",
                    "versions": [
                        {
                            "version": "10.4",
                            "status": "affected",
                            "versionType": "custom",
                            "lessThan": "10.4.3"
                        },
                        {
                            "version": "10.2",
                            "status": "affected",
                            "versionType": "custom",
                            "lessThan": "10.2.7"
                        }
                    ],
                    "modules": [
                        "REST API"
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "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."
                        }
                    ],
                    "value": "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."
                }
            ],
            "references": [
                {
                    "url": "https://advisory.splunk.com/advisories/SVD-2026-1001"
                }
            ],
            "title": "Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise",
            "datePublic": "2026-10-07T00:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "type": "cwe",
                            "cweId": "CWE-306",
                            "description": "The software does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources."
                        }
                    ]
                }
            ],
            "source": {
                "advisory": "SVD-2026-1001",
                "discovery": "INTERNAL"
            },
            "providerMetadata": {
                "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
                "shortName": "cisco",
                "dateUpdated": "2026-10-07T20:46:31.281Z"
            },
            "metrics": [
                {
                    "cvssV3_1": {
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1",
                        "baseScore": 9.8,
                        "baseSeverity": "CRITICAL"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Upgrade Splunk Enterprise to versions 10.4.3, 10.2.7, 10.0.10, and 9.4.15, or higher."
                }
            ],
            "workarounds": [
                {
                    "lang": "en",
                    "value": "Turn off the PostgreSQL sidecar by setting `disabled = true` in the `[postgres]` stanza of `$SPLUNK_HOME/etc/system/local/server.conf` if you do not use Edge Processor, OpAmp, or SPL2 data pipelines. Restart Splunk Enterprise to apply the change. 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) and [server.conf](https://help.splunk.com/en/data-management/splunk-enterprise-admin-manual/10.2/configuration-file-reference/10.2.7-configuration-file-reference/server.conf) in the Splunk documentation."
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Gabriel Nitu, Splunk",
                    "type": "finder"
                }
            ]
        }
    }
}