CVE-2026-79748

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{"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": "2026-09-08T21:08:37.320", "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": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.12.15)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "mcphub", "source": "cna", "vendor": "samanhappy"}, "product": "mcphub", "vendor": "samanhappy"}], "created": "2026-08-31T19:30:05.303008+00:00", "updated": "2026-08-31T21:20:45.831973+00:00", "vendors": ["samanhappy", "samanhappy$PRODUCT$mcphub"]}