{"id":259,"date":"2026-10-29T07:27:51","date_gmt":"2026-10-29T07:27:51","guid":{"rendered":"https:\/\/bugskan.com\/?p=259"},"modified":"2026-10-29T07:27:52","modified_gmt":"2026-10-29T07:27:52","slug":"ruflos-default-mcp-bridge-exposed-powerful-tools-without-authentication","status":"publish","type":"post","link":"https:\/\/bugskan.com\/index.php\/2026\/10\/29\/ruflos-default-mcp-bridge-exposed-powerful-tools-without-authentication\/","title":{"rendered":"Ruflo\u2019s default MCP bridge exposed powerful tools without authentication"},"content":{"rendered":"

The Ruflo disclosure describes an unauthenticated MCP bridge in the project\u2019s default Docker Compose deployment. A reachable attacker could invoke powerful tools, including shell execution, and access secrets inside the bridge environment.<\/p>\n

The issue is in Ruflo, an orchestration layer, rather than proof of a vulnerability in every Claude Code or Codex installation it can manage. Binding to all interfaces increases reachability, while firewall and network controls still determine actual exposure.<\/p>\n

The reported fix is 3.16.3. Update to a maintained release, restrict bridge access and investigate reachable older deployments for unauthorized tool calls, credential access and changes to agent memory.<\/p>\n

Read the original source<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

CVE-2026-59726 affected network-reachable default deployments before 3.16.3, with exposure shaped by surrounding network controls.<\/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_7de8f79099027e","bugskan_event_type":"vulnerability","bugskan_response":"REVIEW","bugskan_technical_severity":"","bugskan_technical_severity_source":"","bugskan_evidence_quality":"medium","bugskan_affected_scope":"Network-reachable affected Ruflo MCP bridge deployments below 3.16.3.","bugskan_recommended_next_step":"Update Ruflo, restrict bridge access and investigate previously exposed instances.","bugskan_who_should_check":"","bugskan_material_updated_at":"2026-07-29T00:00:00Z","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":[60],"class_list":["post-259","post","type-post","status-publish","format-standard","hentry","category-uncategorized","bugskan_format-security-brief","bugskan_technology-ruflo"],"_links":{"self":[{"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/posts\/259","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=259"}],"version-history":[{"count":1,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/posts\/259\/revisions"}],"predecessor-version":[{"id":398,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/posts\/259\/revisions\/398"}],"wp:attachment":[{"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/media?parent=259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/categories?post=259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/tags?post=259"},{"taxonomy":"bugskan_format","embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/bugskan_format?post=259"},{"taxonomy":"bugskan_technology","embeddable":true,"href":"https:\/\/bugskan.com\/index.php\/wp-json\/wp\/v2\/bugskan_technology?post=259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}