{"cve":"CVE-2026-79743","nvd":{"published":"2026-08-31T18:17:19.610","modified":"2026-09-08T21:08:37.320","status":"Awaiting Analysis","description":"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 0.12.13, MCPB File Upload Handler extracts a ZIP file and reads manifest.json from it. The name field in the manifest is directly concatenated into a file path (line 107) without any sanitization or path traversal character validation. An attacker can craft a malicious MCPB file where manifest.name is set to something like ../../../etc/malicious, causing the file to be extracted to an arbitrary location on the file system. The cleanupOldMcpbServer function (line 110) also uses the unsanitized name, potentially allowing deletion of arbitrary directories. This issue has been patched in version 0.12.13.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.9},"cvss_v3":null,"cwes":["CWE-22"],"references":["https://github.com/samanhappy/mcphub/pull/770","https://github.com/samanhappy/mcphub/releases/tag/v0.12.13","https://github.com/samanhappy/mcphub/security/advisories/GHSA-p3h2-2j4p-p83g","https://github.com/samanhappy/mcphub/security/advisories/GHSA-p3h2-2j4p-p83g"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-79743","score":0.00537,"percentile":0.45255,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-p3h2-2j4p-p83g","url":"https://osv.dev/vulnerability/GHSA-p3h2-2j4p-p83g","summary":"MCPHub has Path Traversal via Malicious MCPB Manifest Name","modified":"2026-09-01T03:55:43.780375105Z","packages":[{"ecosystem":"npm","name":"@samanhappy/mcphub","purl":"pkg:npm/%40samanhappy/mcphub","ranges":["<0.12.13"],"fixed":["0.12.13"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}