In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that holds a role with the edit_spl2_module_permissions capability could use the affected Representational State Transfer (REST) API to access permission grants for SPL2 modules that the user does not have permission to view. The vulnerability is possible because Splunk Enterprise does not verify that the user can read the requested app before the affected REST API returns SPL2 module permission grants. For more information see Module permissions (https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/modules-statements-and-views/module-permissions) and Manage SPL2 modules (https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/multiple-searches-in-an-spl2-module/manage-spl2-modules) in the Splunk documentation.
Splunk Enterprise versions 9.4.x are not affected.
Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-76278",
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"dateUpdated": "2026-10-08T13:31:03.418Z",
"dateReserved": "2026-08-19T12:02:03.621Z",
"datePublished": "2026-10-07T20:46:36.393Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco",
"dateUpdated": "2026-10-07T20:46:36.393Z"
},
"datePublic": "2026-10-07T00:00:00.000Z",
"title": "Authorization Bypass in SPL2 Module Permissions in Splunk Enterprise",
"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 edit_spl2_module_permissions capability could use the affected Representational State Transfer (REST) API to access permission grants for SPL2 modules that the user does not have permission to view. The vulnerability is possible because Splunk Enterprise does not verify that the user can read the requested app before the affected REST API returns SPL2 module permission grants. For more information see Module permissions (https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/modules-statements-and-views/module-permissions) and Manage SPL2 modules (https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/multiple-searches-in-an-spl2-module/manage-spl2-modules) in the Splunk documentation.\n\nSplunk Enterprise versions 9.4.x are not affected.",
"supportingMedia": [
{
"type": "text/markdown",
"base64": false,
"value": "In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that holds a role with the `edit_spl2_module_permissions` capability could use the affected Representational State Transfer (REST) API to access permission grants for SPL2 modules that the user does not have permission to view. The vulnerability is possible because Splunk Enterprise does not verify that the user can read the requested app before the affected REST API returns SPL2 module permission grants. For more information see [Module permissions](https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/modules-statements-and-views/module-permissions) and [Manage SPL2 modules](https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/multiple-searches-in-an-spl2-module/manage-spl2-modules) in the Splunk documentation.\n\nSplunk Enterprise versions 9.4.x are not affected."
}
]
}
],
"affected": [
{
"vendor": "Splunk",
"product": "Splunk Enterprise",
"modules": [
"REST API"
],
"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"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.",
"cweId": "CWE-639",
"type": "cwe"
}
]
}
],
"references": [
{
"url": "https://advisory.splunk.com/advisories/SVD-2026-1001"
}
],
"metrics": [
{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
],
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"baseScore": 4.3,
"baseSeverity": "MEDIUM"
}
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade Splunk Enterprise to versions 10.4.3, 10.2.7, 10.0.10, and 9.4.15, or higher."
}
],
"credits": [
{
"lang": "en",
"value": "Gabriel Nitu, Splunk",
"type": "finder"
}
]
},
"adp": [
{
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-10-08T13:31:03.418Z"
},
"title": "CISA ADP Vulnrichment",
"metrics": [
{}
]
}
]
}
}