{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-79748", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-25T14:08:18.109Z", "datePublished": "2026-08-31T17:55:08.740Z", "dateUpdated": "2026-08-31T18:40:47.698Z"}, "containers": {"cna": {"title": "MCPHub: Authenticated non-admin user achieves RCE via POST /api/servers (missing authorization on stdio command/args)", "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/samanhappy/mcphub/security/advisories/GHSA-mx89-jjx9-gjr8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/samanhappy/mcphub/security/advisories/GHSA-mx89-jjx9-gjr8"}, {"name": "https://github.com/samanhappy/mcphub/pull/770", "tags": ["x_refsource_MISC"], "url": "https://github.com/samanhappy/mcphub/pull/770"}, {"name": "https://github.com/samanhappy/mcphub/releases/tag/v0.12.15", "tags": ["x_refsource_MISC"], "url": "https://github.com/samanhappy/mcphub/releases/tag/v0.12.15"}], "affected": [{"vendor": "samanhappy", "product": "mcphub", "versions": [{"version": "< 0.12.15", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-31T17:55:08.740Z"}, "descriptions": [{"lang": "en", "value": "MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 0.12.15, the POST /api/servers and PUT /api/servers/:name endpoints in MCPHub create/update MCP server configurations and then immediately spawn the configured stdio process via child_process.spawn. Authentication is required, but there is no authorization check restricting these endpoints to admins, and there is no allowlist/sanitization on the command and args fields. As a result, any authenticated non-admin user can submit a server configuration with command:\"/bin/sh\" (or any other binary) and arbitrary args, causing MCPHub to execute the attacker-controlled process as the MCPHub server's OS user (commonly root in the published Docker image and in npx/systemd deployments). This issue has been patched in version 0.12.15."}], "source": {"advisory": "GHSA-mx89-jjx9-gjr8", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/samanhappy/mcphub/security/advisories/GHSA-mx89-jjx9-gjr8", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-31T18:39:58.857119Z", "id": "CVE-2026-79748", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-31T18:40:47.698Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "mcphub", "vendor": "samanhappy", "versions": [{"status": "affected", "version": "< 0.12.15"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 0.12.15, the POST /api/servers and PUT /api/servers/:name endpoints in MCPHub create/update MCP server configurations and then immediately spawn the configured stdio process via child_process.spawn. Authentication is required, but there is no authorization check restricting these endpoints to admins, and there is no allowlist/sanitization on the command and args fields. As a result, any authenticated non-admin user can submit a server configuration with command:\"/bin/sh\" (or any other binary) and arbitrary args, causing MCPHub to execute the attacker-controlled process as the MCPHub server's OS user (commonly root in the published Docker image and in npx/systemd deployments). This issue has been patched in version 0.12.15."}], "id": "CVE-2026-79748", "lastModified": "2026-08-31T19:17:13.667", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-79748", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-31T18:39:58.857119Z", "version": "2.0.3"}}]}, "published": "2026-08-31T18:17:20.340", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/samanhappy/mcphub/pull/770"}, {"source": "security-advisories@github.com", "url": "https://github.com/samanhappy/mcphub/releases/tag/v0.12.15"}, {"source": "security-advisories@github.com", "url": "https://github.com/samanhappy/mcphub/security/advisories/GHSA-mx89-jjx9-gjr8"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/samanhappy/mcphub/security/advisories/GHSA-mx89-jjx9-gjr8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"created": "2026-08-31T19:30:05.303008+00:00", "updated": "2026-08-31T19:30:05.303014+00:00", "vendors": []}