CVE-2026-76256

{"id": "CVE-2026-76256", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-76256", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-26T14:49:05.714512Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@cisco.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "psirt@cisco.com", "affectedData": [{"vendor": "Splunk", "modules": ["Splunk Secure Gateway"], "product": "Splunk Enterprise", "versions": [{"status": "affected", "version": "10.4", "lessThan": "10.4.2", "versionType": "custom"}, {"status": "affected", "version": "10.2", "lessThan": "10.2.6", "versionType": "custom"}, {"status": "affected", "version": "10.0", "lessThan": "10.0.9", "versionType": "custom"}, {"status": "affected", "version": "9.4", "lessThan": "9.4.14", "versionType": "custom"}]}, {"vendor": "Splunk", "product": "Splunk Secure Gateway", "versions": [{"status": "affected", "version": "3.10", "lessThan": "3.10.9", "versionType": "custom"}, {"status": "affected", "version": "3.9", "lessThan": "3.9.23", "versionType": "custom"}, {"status": "affected", "version": "3.8", "lessThan": "3.8.70", "versionType": "custom"}]}]}], "published": "2026-08-19T22:17:13.543", "references": [{"url": "https://advisory.splunk.com/advisories/SVD-2026-0801", "tags": ["Vendor Advisory"], "source": "psirt@cisco.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-200"}]}], "descriptions": [{"lang": "en", "value": "In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the \"admin\" or \"power\" Splunk roles could read sensitive Security Assertion Markup Language setup and instance settings information through Splunk Secure Gateway Representational State Transfer (REST) API endpoints. The vulnerability is possible because the affected Security Assertion Markup Language setup and instance settings REST API endpoints do not enforce authorization requirements before returning configuration information."}, {"lang": "es", "value": "En las versiones de Splunk Enterprise anteriores a 10.4.2, 10.2.6, 10.0.9 y 9.4.14, y las versiones de Splunk Secure Gateway anteriores a 3.10.9, 3.9.23 y 3.8.70, un usuario que no posee los roles de Splunk \u2019admin\u2019 o \u2019power\u2019 podr\u00eda leer informaci\u00f3n sensible de configuraci\u00f3n e instancia de Security Assertion Markup Language a trav\u00e9s de los puntos finales de la API Representational State Transfer (REST) de Splunk Secure Gateway. La vulnerabilidad es posible porque los puntos finales de la API REST de configuraci\u00f3n e instancia de Security Assertion Markup Language afectados no aplican requisitos de autorizaci\u00f3n antes de devolver informaci\u00f3n de configuraci\u00f3n."}], "lastModified": "2026-10-26T10:10:00.140", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "E180CC4C-5B8B-4D69-8535-93DCF3510119", "versionEndExcluding": "9.4.14", "versionStartIncluding": "9.4.0"}, {"criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "0FD75354-A6EE-49F9-9B8A-31287A845CFB", "versionEndExcluding": "10.0.9", "versionStartIncluding": "10.0.0"}, {"criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "C8FDA841-04BC-404C-B56D-7869CBD8B56C", "versionEndExcluding": "10.2.6", "versionStartIncluding": "10.2.0"}, {"criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "209C1DE6-893D-424D-B103-B64A314AD8DC", "versionEndExcluding": "10.4.2", "versionStartIncluding": "10.4.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:splunk:splunk_secure_gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC3EC4A6-9C00-49CB-92DC-97F21C4E1BC1", "versionEndExcluding": "3.8.70", "versionStartIncluding": "3.8.0"}, {"criteria": "cpe:2.3:a:splunk:splunk_secure_gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "46A65041-64F2-4459-A7CB-947129FA9BEA", "versionEndExcluding": "3.9.23", "versionStartIncluding": "3.9.0"}, {"criteria": "cpe:2.3:a:splunk:splunk_secure_gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "84D6A11D-4EA4-4D38-B8A1-4E0D2627B245", "versionEndExcluding": "3.10.9", "versionStartIncluding": "3.10.0"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@cisco.com"}