{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-76267", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2026-08-19T12:02:03.620Z", "datePublished": "2026-10-07T20:46:30.339Z", "dateUpdated": "2026-10-07T20:46:30.339Z"}, "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"}, {"version": "10.0", "status": "affected", "versionType": "custom", "lessThan": "10.0.10"}], "modules": ["REST API"]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/markdown", "value": "In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that holds a role with the `read_o11y_content` capability could inject forged entries into the app log through the Representational State Transfer (REST) API. The vulnerability is possible because Splunk App for Splunk O11y Cloud does not neutralize user-supplied SignalFlow content before writing it to the app log.\n\nSplunk Enterprise versions 9.4.x are not affected."}], "value": "In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that holds a role with the read_o11y_content capability could inject forged entries into the app log through the Representational State Transfer (REST) API. The vulnerability is possible because Splunk App for Splunk O11y Cloud does not neutralize user-supplied SignalFlow content before writing it to the app log.\n\nSplunk Enterprise versions 9.4.x are not affected."}], "references": [{"url": "https://advisory.splunk.com/advisories/SVD-2026-1001"}], "title": "Log Injection through the REST API in Splunk App for Splunk O11y Cloud", "datePublic": "2026-10-07T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "type": "cwe", "cweId": "CWE-117", "description": "The software does not neutralize or incorrectly neutralizes output that is written to logs."}]}], "source": {"advisory": "SVD-2026-1001", "discovery": "INTERNAL"}, "providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2026-10-07T20:46:30.339Z"}, "metrics": [{"cvssV3_1": {"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1", "baseScore": 4.3, "baseSeverity": "MEDIUM"}, "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 or remove the Splunk App for Splunk O11y Cloud. For more information see [Manage app and add-on objects](https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.2/meet-splunk-apps/manage-app-and-add-on-objects) in the Splunk documentation."}], "credits": [{"lang": "en", "value": "Gabriel Nitu, Splunk", "type": "finder"}]}}}

{}

{"affected": [{"affectedData": [{"modules": ["REST API"], "product": "Splunk Enterprise", "vendor": "Splunk", "versions": [{"lessThan": "10.4.3", "status": "affected", "version": "10.4", "versionType": "custom"}, {"lessThan": "10.2.7", "status": "affected", "version": "10.2", "versionType": "custom"}, {"lessThan": "10.0.10", "status": "affected", "version": "10.0", "versionType": "custom"}]}], "source": "psirt@cisco.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that holds a role with the read_o11y_content capability could inject forged entries into the app log through the Representational State Transfer (REST) API. The vulnerability is possible because Splunk App for Splunk O11y Cloud does not neutralize user-supplied SignalFlow content before writing it to the app log.\n\nSplunk Enterprise versions 9.4.x are not affected."}], "id": "CVE-2026-76267", "lastModified": "2026-10-07T21:17:17.467", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "psirt@cisco.com", "type": "Primary"}]}, "published": "2026-10-07T21:17:17.467", "references": [{"source": "psirt@cisco.com", "url": "https://advisory.splunk.com/advisories/SVD-2026-1001"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-117"}], "source": "psirt@cisco.com", "type": "Primary"}]}

{}

{}