{"history":[{"alert":0,"cve":"CVE-2025-53109","id":22952,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.00765, \"percentile\": 0.55933}"},{"alert":0,"cve":"CVE-2025-53109","id":20572,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.00765, \"percentile\": 0.55762}"},{"alert":0,"cve":"CVE-2025-53109","id":18540,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.00765, \"percentile\": 0.55712}"},{"alert":0,"cve":"CVE-2025-53109","id":16604,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.00765, \"percentile\": 0.55698}"},{"alert":0,"cve":"CVE-2025-53109","id":14582,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.00765, \"percentile\": 0.55679}"},{"alert":0,"cve":"CVE-2025-53109","id":12364,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.00765, \"percentile\": 0.55623}"},{"alert":0,"cve":"CVE-2025-53109","id":10350,"kind":"epss","observed_at":1793938800,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.00765, \"percentile\": 0.55592}"},{"alert":0,"cve":"CVE-2025-53109","id":7899,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.00765, \"percentile\": 0.55567}"},{"alert":0,"cve":"CVE-2025-53109","id":5676,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.00765, \"percentile\": 0.55497}"},{"alert":0,"cve":"CVE-2025-53109","id":3458,"kind":"epss","observed_at":1793665375,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.00765, \"percentile\": 0.55451}"},{"alert":1,"cve":"CVE-2025-53109","id":1826,"kind":"cna","observed_at":1793665375,"payload":"{\"containers\": {\"adp\": [{\"metrics\": [{\"other\": {\"content\": {\"id\": \"CVE-2025-53109\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2025-07-02T14:50:09.361267Z\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}], \"providerMetadata\": {\"dateUpdated\": \"2025-07-02T14:50:18.562Z\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"product\": \"servers\", \"vendor\": \"modelcontextprotocol\", \"versions\": [{\"status\": \"affected\", \"version\": \"< 0.6.4\"}, {\"status\": \"affected\", \"version\": \"< 2025.7.01\"}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). Versions of Filesystem prior to 0.6.4 or 2025.7.01 could allow access to unintended files via symlinks within allowed directories. Users are advised to upgrade to 0.6.4 or 2025.7.01 resolve.\"}], \"metrics\": [{\"cvssV4_0\": {\"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"attackVector\": \"NETWORK\", \"baseScore\": 7.3, \"baseSeverity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"subAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"HIGH\", \"subIntegrityImpact\": \"HIGH\", \"userInteraction\": \"PASSIVE\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H\", \"version\": \"4.0\", \"vulnAvailabilityImpact\": \"HIGH\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\"}}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-59\", \"description\": \"CWE-59: Improper Link Resolution Before File Access ('Link Following')\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2025-07-02T14:30:57.647Z\", \"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\"}, \"references\": [{\"name\": \"https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-q66q-fx2p-7w4m\", \"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-q66q-fx2p-7w4m\"}, {\"name\": \"https://github.com/modelcontextprotocol/servers/commit/d00c60df9d74dba8a3bb13113f8904407cda594f\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/modelcontextprotocol/servers/commit/d00c60df9d74dba8a3bb13113f8904407cda594f\"}], \"source\": {\"advisory\": \"GHSA-q66q-fx2p-7w4m\", \"discovery\": \"UNKNOWN\"}, \"title\": \"Model Context Protocol Servers Vulnerable to Path Validation Bypass via Prefix Matching and Symlink Handling\"}}, \"cveMetadata\": {\"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"assignerShortName\": \"GitHub_M\", \"cveId\": \"CVE-2025-53109\", \"datePublished\": \"2025-07-02T14:30:57.647Z\", \"dateReserved\": \"2025-06-25T13:41:23.087Z\", \"dateUpdated\": \"2025-07-02T14:50:18.562Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.1\"}"}],"record":{"affected":[{"product":"servers","vendor":"modelcontextprotocol","versions":[{"status":"affected","version":"< 0.6.4"},{"status":"affected","version":"< 2025.7.01"}]}],"cna":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2025-53109","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2025-07-02T14:50:09.361267Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2025-07-02T14:50:18.562Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"servers","vendor":"modelcontextprotocol","versions":[{"status":"affected","version":"< 0.6.4"},{"status":"affected","version":"< 2025.7.01"}]}],"descriptions":[{"lang":"en","value":"Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). Versions of Filesystem prior to 0.6.4 or 2025.7.01 could allow access to unintended files via symlinks within allowed directories. Users are advised to upgrade to 0.6.4 or 2025.7.01 resolve."}],"metrics":[{"cvssV4_0":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7.3,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2025-07-02T14:30:57.647Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-q66q-fx2p-7w4m","tags":["x_refsource_CONFIRM"],"url":"https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-q66q-fx2p-7w4m"},{"name":"https://github.com/modelcontextprotocol/servers/commit/d00c60df9d74dba8a3bb13113f8904407cda594f","tags":["x_refsource_MISC"],"url":"https://github.com/modelcontextprotocol/servers/commit/d00c60df9d74dba8a3bb13113f8904407cda594f"}],"source":{"advisory":"GHSA-q66q-fx2p-7w4m","discovery":"UNKNOWN"},"title":"Model Context Protocol Servers Vulnerable to Path Validation Bypass via Prefix Matching and Symlink Handling"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2025-53109","datePublished":"2025-07-02T14:30:57.647Z","dateReserved":"2025-06-25T13:41:23.087Z","dateUpdated":"2025-07-02T14:50:18.562Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"cna_checked":1794435601,"cve":"CVE-2025-53109","description":"Model Context Protocol Servers is a collection of reference implementations for the model context protocol (MCP). Versions of Filesystem prior to 0.6.4 or 2025.7.01 could allow access to unintended files via symlinks within allowed directories. Users are advised to upgrade to 0.6.4 or 2025.7.01 resolve.","epss":{"date":"2026-11-12","epss":0.00765,"percentile":0.55933},"epss_checked":1794522003,"first_seen":1793665374,"kev":null,"kev_checked":1794522003,"products":"modelcontextprotocol servers","references":["https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-q66q-fx2p-7w4m","https://github.com/modelcontextprotocol/servers/commit/d00c60df9d74dba8a3bb13113f8904407cda594f"],"score":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7.3,"baseSeverity":"HIGH","privilegesRequired":"NONE","provider":"GitHub_M","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"solutions":"","state":"PUBLISHED","title":"Model Context Protocol Servers Vulnerable to Path Validation Bypass via Prefix Matching and Symlink Handling","updated_at":1794500401,"workarounds":""},"sources":[{"canonical_url":"https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-4gxg-m5jx-9j57","id":93,"publisher":"MCP server advisories","title":"Case-variant path bypasses symlink check and allows creating files outside allowed directories in server-filesystem"},{"canonical_url":"https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-53mr-w429-c597","id":97,"publisher":"MCP server advisories","title":"Parent-Directory Fallback TOCTOU in @modelcontextprotocol/server-filesystem Permits Arbitrary File Write Outside allowedDirectories"},{"canonical_url":"https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-q66q-fx2p-7w4m","id":105,"publisher":"MCP server advisories","title":"Path validation bypass via symlink handling"}]}