{"id":80,"date":"2026-10-29T06:46:58","date_gmt":"2026-10-29T06:46:58","guid":{"rendered":"https:\/\/bugskan.com\/?p=80"},"modified":"2026-10-29T06:46:59","modified_gmt":"2026-10-29T06:46:59","slug":"historical-advisory-mcp-inspector-proxy-authentication-flaw-enabled-code-execution","status":"publish","type":"post","link":"https:\/\/bugskan.com\/index.php\/2026\/10\/29\/historical-advisory-mcp-inspector-proxy-authentication-flaw-enabled-code-execution\/","title":{"rendered":"Historical advisory: MCP Inspector proxy authentication flaw enabled code execution"},"content":{"rendered":"<p>CVE-2025-49596 concerns missing authentication between MCP Inspector\u2019s client and proxy. The reviewed advisory says versions below 0.14.1 could accept unauthenticated requests that launch MCP commands over stdio.<\/p>\n<p>MCP Inspector is a development and debugging tool. Exposure depends on running that affected tool and its reachable proxy; use of the MCP protocol alone does not establish applicability.<\/p>\n<p>The advisory identifies 0.14.1 as the historical fixed release. Review developer tooling as well as production dependencies, and update affected installations to a supported patched release. This June 2025 disclosure is included as historical coverage, not a new breach claim.<\/p>\n<p><a href=\"https:\/\/github.com\/advisories\/GHSA-7f8r-222p-6f5g\">Read the original source<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The affected tool was MCP Inspector, not every application using the Model Context Protocol.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"bugskan_incident_id":"inc_a7f2c4cb770904","bugskan_event_type":"vulnerability","bugskan_response":"REVIEW","bugskan_technical_severity":"","bugskan_technical_severity_source":"","bugskan_evidence_quality":"high","bugskan_affected_scope":"MCP Inspector client\/proxy","bugskan_recommended_next_step":"Update affected Inspector installations and review proxy exposure.","bugskan_who_should_check":"Developers running MCP Inspector below 0.14.1.","bugskan_material_updated_at":"2025-07-09T00:00:00Z","bugskan_reviewer_name":"","bugskan_reviewed_at":"","bugskan_legacy_state":"mapped","bugskan_featured":false,"bugskan_sample":false,"footnotes":""},"categories":[1],"tags":[],"bugskan_format":[2],"bugskan_technology":[30],"class_list":["post-80","post","type-post","status-publish","format-standard","hentry","category-uncategorized","bugskan_format-security-brief","bugskan_technology-mcp-inspector"],"_links":{"self":[{"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/posts\/80","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/comments?post=80"}],"version-history":[{"count":1,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/posts\/80\/revisions"}],"predecessor-version":[{"id":315,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/posts\/80\/revisions\/315"}],"wp:attachment":[{"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/media?parent=80"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/categories?post=80"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/tags?post=80"},{"taxonomy":"bugskan_format","embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/bugskan_format?post=80"},{"taxonomy":"bugskan_technology","embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/bugskan_technology?post=80"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}