{"schemaVersion":3,"id":"CVE-2025-49596","aliases":["GHSA-7f8r-222p-6f5g"],"status":"published","duplicateOf":null,"title":null,"description":"The MCP inspector is a developer tool for testing and debugging MCP servers. Versions of MCP Inspector below 0.14.1 are vulnerable to remote code execution due to lack of authentication between the Inspector client and proxy, allowing unauthenticated requests to launch MCP commands over stdio. Users should immediately upgrade to version 0.14.1 or later to address these vulnerabilities.","dates":{"published":"2025-06-13T20:11:40.453Z","modified":"2025-07-09T20:19:02.667Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.4,"severity":"critical","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":9.4,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Npm","score":9.4,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":9.4,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.44453,"percentile":0.98754,"severity":"high","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.44453},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.44453,"percentile":0.98754}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.44453,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.44453,"percentile":0.98754}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-306","name":"Missing Authentication for Critical Function","description":"The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/306.html"}],"affected":[{"vendor":"modelcontextprotocol","product":"inspector","name":"inspector","label":"inspector","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 0.14.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.14.1","eol":null,"hubHref":"/vendor/modelcontextprotocol/inspector"},{"vendor":"@modelcontextprotocol","product":"inspector","name":"@modelcontextprotocol/inspector","label":"inspector","ecosystem":"Npm","cpePart":null,"purl":"pkg:npm/@modelcontextprotocol/inspector","purlType":"npm","versions":[{"text":"< 0.14.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.14.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/modelcontextprotocol/inspector/security/advisories/GHSA-7f8r-222p-6f5g","label":"github.com/modelcontextprotocol/inspector/security/advisories/GHSA-7f8r-222p-6f5g","hostname":"github.com","tags":["X Refsource CONFIRM","WEB"]},{"url":"https://github.com/modelcontextprotocol/inspector/commit/50df0e1ec488f3983740b4d28d2a968f12eb8979","label":"github.com/modelcontextprotocol/inspector/commit/50df0e1ec488f3983740b4d28d2a968f12eb8979","hostname":"github.com","tags":["X Refsource MISC","WEB"]},{"url":"https://thenewstack.io/mcp-vulnerability-exposes-the-ai-untrusted-code-crisis","label":"thenewstack.io/mcp-vulnerability-exposes-the-ai-untrusted-code-crisis","hostname":"thenewstack.io","tags":["X Refsource MISC","WEB"]},{"url":"https://www.oligo.security/blog/critical-rce-vulnerability-in-anthropic-mcp-inspector-cve-2025-49596","label":"www.oligo.security/blog/critical-rce-vulnerability-in-anthropic-mcp-inspector-cve-2025-49596","hostname":"www.oligo.security","tags":["X Refsource MISC","WEB"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49596","label":"nvd.nist.gov/vuln/detail/CVE-2025-49596","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/modelcontextprotocol/inspector","label":"github.com/modelcontextprotocol/inspector","hostname":"github.com","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2025-06-13T20:11:40.453Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-07-09T20:19:02.667Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T23:02:27.924Z","stale":false,"partial":false}}