Refine your search
2 vulnerabilities found for Splunk MCP Server by Splunk
CVE-2025-20381 (GCVE-0-2025-20381)
Vulnerability from nvd
Published
2025-12-03 17:00
Modified
2025-12-03 21:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-863 - The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
Summary
In Splunk MCP Server app versions below 0.2.4, a user with access to the "run_splunk_query" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Splunk | Splunk MCP Server |
Version: 0.2 < 0.2.4 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-20381",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-12-03T21:29:38.813869Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-12-03T21:29:51.839Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Splunk MCP Server",
"vendor": "Splunk",
"versions": [
{
"lessThan": "0.2.4",
"status": "affected",
"version": "0.2",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Saket Pandey, Splunk"
}
],
"datePublic": "2025-12-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions."
}
],
"value": "In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-03T17:00:25.945Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"url": "https://advisory.splunk.com/advisories/SVD-2025-1210"
}
],
"source": {
"advisory": "SVD-2025-1210"
},
"title": "SPL commands allowlist controls bypass in Splunk MCP Server app through \"run_splunk_query\" MCP tool"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2025-20381",
"datePublished": "2025-12-03T17:00:25.945Z",
"dateReserved": "2024-10-10T19:15:13.263Z",
"dateUpdated": "2025-12-03T21:29:51.839Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-20381 (GCVE-0-2025-20381)
Vulnerability from cvelistv5
Published
2025-12-03 17:00
Modified
2025-12-03 21:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-863 - The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
Summary
In Splunk MCP Server app versions below 0.2.4, a user with access to the "run_splunk_query" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Splunk | Splunk MCP Server |
Version: 0.2 < 0.2.4 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-20381",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-12-03T21:29:38.813869Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-12-03T21:29:51.839Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Splunk MCP Server",
"vendor": "Splunk",
"versions": [
{
"lessThan": "0.2.4",
"status": "affected",
"version": "0.2",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Saket Pandey, Splunk"
}
],
"datePublic": "2025-12-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions."
}
],
"value": "In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-03T17:00:25.945Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"url": "https://advisory.splunk.com/advisories/SVD-2025-1210"
}
],
"source": {
"advisory": "SVD-2025-1210"
},
"title": "SPL commands allowlist controls bypass in Splunk MCP Server app through \"run_splunk_query\" MCP tool"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2025-20381",
"datePublished": "2025-12-03T17:00:25.945Z",
"dateReserved": "2024-10-10T19:15:13.263Z",
"dateUpdated": "2025-12-03T21:29:51.839Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}