{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-79744", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-25T14:08:18.108Z", "datePublished": "2026-08-31T17:56:38.995Z", "dateUpdated": "2026-08-31T18:49:37.857Z" }, "containers": { "cna": { "title": "MCPHub: Missing Authorization on `PUT /api/system-config` Lets Any Non-Admin Rewrite Global Security Configuration", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-269", "lang": "en", "description": "CWE-269: Improper Privilege Management", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/samanhappy/mcphub/security/advisories/GHSA-4gc8-885f-qj36", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/samanhappy/mcphub/security/advisories/GHSA-4gc8-885f-qj36" }, { "name": "https://github.com/samanhappy/mcphub/releases/tag/v1.0.29", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/samanhappy/mcphub/releases/tag/v1.0.29" } ], "affected": [ { "vendor": "samanhappy", "product": "mcphub", "versions": [ { "version": "< 1.0.29", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-31T17:56:38.995Z" }, "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 1.0.29, MCPHub's PUT /api/system-config endpoint (handler updateSystemConfig) performs no authorization check. It is protected only by the app-wide authentication middleware and a rate limiter — it never inspects req.user.isAdmin. This issue has been patched in version 1.0.29." } ], "source": { "advisory": "GHSA-4gc8-885f-qj36", "discovery": "UNKNOWN" } }, "adp": [ { "references": [ { "url": "https://github.com/samanhappy/mcphub/security/advisories/GHSA-4gc8-885f-qj36", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-31T18:49:18.373831Z", "id": "CVE-2026-79744", "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": "2026-08-31T18:49:37.857Z" } } ] } }