{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-76289", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2026-08-19T12:02:03.622Z", "datePublished": "2026-10-21T22:51:51.849Z", "dateUpdated": "2026-10-22T13:37:48.707Z"}, "containers": {"cna": {"affected": [{"product": "Splunk Enterprise", "vendor": "Splunk", "versions": [{"version": "10.4", "status": "affected", "versionType": "custom", "lessThan": "10.4.4"}, {"version": "10.2", "status": "affected", "versionType": "custom", "lessThan": "10.2.8"}, {"version": "10.0", "status": "affected", "versionType": "custom", "lessThan": "10.0.11"}, {"version": "9.4", "status": "affected", "versionType": "custom", "lessThan": "9.4.16"}], "modules": ["REST API"]}], "descriptions": [{"lang": "en", "value": "In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, a user who does not hold the \"admin\" or \"power\" Splunk roles could make the Splunk Enterprise instance unavailable to other users by sending a request to the Representational State Transfer (REST) API endpoint for lookup table files. The affected instance requires a restart to restore service.\nThe vulnerability is possible because the endpoint does not limit resource use when it processes response field selections.\nFor more information see Endpoints reference list (https://help.splunk.com/en/splunk-enterprise/rest-api-reference/10.4/introduction/endpoints-reference-list) and About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access) in the Splunk documentation."}], "references": [{"url": "https://advisory.splunk.com/advisories/SVD-2026-1007"}], "title": "Denial of Service (DoS) through the REST API in Splunk Enterprise", "datePublic": "2026-10-21T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "type": "cwe", "cweId": "CWE-770", "description": "The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor."}]}], "source": {"advisory": "SVD-2026-1007", "discovery": ""}, "providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2026-10-21T22:51:51.849Z"}, "metrics": [{"cvssV3_1": {"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "baseScore": 6.5, "baseSeverity": "MEDIUM"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "solutions": [{"lang": "en", "value": "Upgrade Splunk Enterprise to versions 10.4.4, 10.2.8, 10.0.11, and 9.4.16 or higher."}], "credits": [{"lang": "en", "value": "Pedro Cardoso (tvmpt)"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-76289", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-22T13:20:00.571487Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-22T13:37:48.707Z"}}]}}

{}

{"affected": [{"affectedData": [{"modules": ["REST API"], "product": "Splunk Enterprise", "vendor": "Splunk", "versions": [{"lessThan": "10.4.4", "status": "affected", "version": "10.4", "versionType": "custom"}, {"lessThan": "10.2.8", "status": "affected", "version": "10.2", "versionType": "custom"}, {"lessThan": "10.0.11", "status": "affected", "version": "10.0", "versionType": "custom"}, {"lessThan": "9.4.16", "status": "affected", "version": "9.4", "versionType": "custom"}]}], "source": "psirt@cisco.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, a user who does not hold the \"admin\" or \"power\" Splunk roles could make the Splunk Enterprise instance unavailable to other users by sending a request to the Representational State Transfer (REST) API endpoint for lookup table files. The affected instance requires a restart to restore service.\nThe vulnerability is possible because the endpoint does not limit resource use when it processes response field selections.\nFor more information see Endpoints reference list (https://help.splunk.com/en/splunk-enterprise/rest-api-reference/10.4/introduction/endpoints-reference-list) and About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access) in the Splunk documentation."}], "id": "CVE-2026-76289", "lastModified": "2026-10-21T23:17:26.687", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "psirt@cisco.com", "type": "Primary"}]}, "published": "2026-10-21T23:17:26.687", "references": [{"source": "psirt@cisco.com", "url": "https://advisory.splunk.com/advisories/SVD-2026-1007"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "psirt@cisco.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[10.4,10.4.4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[10.2,10.2.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[10.0,10.0.11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[9.4,9.4.16)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Splunk Enterprise", "source": "cna", "vendor": "Splunk"}, "product": "splunk_enterprise", "vendor": "splunk"}], "created": "2026-10-22T04:15:09.496947+00:00", "updated": "2026-10-22T05:00:11.598052+00:00", "vendors": ["splunk", "splunk$PRODUCT$splunk_enterprise"]}