{"id":"CVE-2026-112137","kind":"vulnerability","aliases":["CVE-2026-112137"],"related":[],"title":"Mendix Studio Pro: web pages can trigger actions on local MCP server","description":"A vulnerability has been identified in Mendix Studio Pro 11 (All versions >= V11.15.0 < V11.16.0), Mendix Studio Pro 11.12 (All versions >= V11.12.6 < V11.12.7). The affected products MCP Server does not properly validate Content-Type and Origin headers on incoming HTTP requests, leaving it vulnerable to Cross-Site Request Forgery (CSRF). This could allow a malicious web page to trick a user's browser into sending unauthorized requests and executing unintended actions on the local MCP Server.","summary":"The MCP Server in Mendix Studio Pro does not validate Content-Type and Origin headers on incoming HTTP requests. A malicious web page can make a developer's browser send unauthorized requests to that local server and trigger unintended actions.","severity":"medium","cvss":5.4,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Mendix Studio Pro","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["ai-tooling","local-dev","mcp","mendix-studio-pro"],"not_affected_if":["mcp-server-not-running","outside-affected-versions"],"how_to_check":"- Check the installed Mendix Studio Pro version. Versions from `11.15.0` up to `11.16.0` (exclusive) and from `11.12.6` up to `11.12.7` (exclusive) are affected.\n- Check whether the MCP Server is running locally while you browse the web.","fix":"- Mendix Studio Pro 11: move to `11.16.0` or later.\n- Mendix Studio Pro 11.12: move to `11.12.7` or later.","status":"open","published_at":"2026-11-10T12:17:16+00:00","first_seen_at":"2026-11-10T12:21:53+00:00","triaged_at":"2026-11-10T12:22:50+00:00","updated_at":"2026-11-10T12:22:50+00:00","category":"ai-tooling","confidence":0.8,"triage":{"at":"2026-11-10T12:22:50Z","model":"claude-haiku-5-5","output":{"fix":"- Mendix Studio Pro 11: move to `11.16.0` or later.\n- Mendix Studio Pro 11.12: move to `11.12.7` or later.","reach":"local","title":"Mendix Studio Pro: web pages can trigger actions on local MCP server","impact":"medium","summary":"The MCP Server in Mendix Studio Pro does not validate Content-Type and Origin headers on incoming HTTP requests. A malicious web page can make a developer's browser send unauthorized requests to that local server and trigger unintended actions.","audience":"developers","category":"ai-tooling","nicknames":[],"who_cares":["mendix-studio-pro","mcp","local-dev"],"confidence":0.8,"fix_status":"available","needs_auth":"unknown","worst_case":"a malicious web page triggers unintended actions in the local MCP Server","analyst_note":"","how_to_check":"- Check the installed Mendix Studio Pro version. Versions from `11.15.0` up to `11.16.0` (exclusive) and from `11.12.6` up to `11.12.7` (exclusive) are affected.\n- Check whether the MCP Server is running locally while you browse the web.","plain_action":"","product_name":"Mendix Studio Pro","needs_analyst":false,"not_affected_if":["outside-affected-versions","mcp-server-not-running"],"who_is_affected":"Developers who run Mendix Studio Pro 11 with its MCP Server active on their machine are exposed, because a browser visiting a malicious page can send requests to that local server. Teams whose Studio Pro versions are outside the affected ranges, or who do not run the MCP Server, can skip it.","user_interaction":"yes","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.001227,"input_tokens":4663,"output_tokens":1521,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-112137':15A,18A '-2026':14A,17A '11':83C '11.12':91C 'action':8A,73B,145C 'affect':97C 'ai':23B 'ai-tool':22B 'allow':127C 'browser':62B,137C 'content':44B,106C 'content-typ':43B,105C 'could':126C 'cross':120C 'cross-sit':119C 'csrf':124C 'cve':13A,16A 'dev':27B 'develop':60B 'execut':143C 'forgeri':123C 'header':48B,110C 'http':51B,113C 'identifi':78C 'incom':50B,112C 'leav':115C 'local':10A,26B,68B,148C 'local-dev':25B 'make':58B 'malici':54B,129C 'mcp':11A,28B,34B,99C,149C 'mendix':1A,19A,30B,37B,80C,88C 'mendix-studio-pro':29B 'origin':47B,109C 'page':5A,56B,131C 'pro':3A,21A,32B,39B,82C,90C 'product':98C 'proper':103C 'request':52B,65B,114C,122C,141C 'send':63B,139C 'server':12A,35B,69B,100C,150C 'site':121C 'studio':2A,20A,31B,38B,81C,89C 'tool':24B 'trick':133C 'trigger':7A,71B 'type':45B,107C 'unauthor':64B,140C 'unintend':72B,144C 'user':135C 'v11.12.6':94C 'v11.12.7':95C 'v11.15.0':86C 'v11.16.0':87C 'valid':42B,104C 'version':85C,93C 'vulner':75C,117C 'web':4A,55B,130C","nicknames":[],"mitigations":[],"who_affected":"Developers who run Mendix Studio Pro 11 with its MCP Server active on their machine are exposed, because a browser visiting a malicious page can send requests to that local server. Teams whose Studio Pro versions are outside the affected ranges, or who do not run the MCP Server, can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"developers","plain_action":null,"pkeys":["mendixstudiopro","studiopro"],"ptokens":["mendix","pro","studio"],"labels":["aitooling","localdev","mcp","medium","mendixstudiopro","vendor"],"campaign_type":null,"search_a":"'-112137':15A,18A '-2026':14A,17A 'action':8A 'cve':13A,16A 'local':10A 'mcp':11A 'mendix':1A,19A 'page':5A 'pro':3A,21A 'server':12A 'studio':2A,20A 'trigger':7A 'web':4A","search_b":"'action':73B 'ai':23B 'ai-tool':22B 'browser':62B 'content':44B 'content-typ':43B 'dev':27B 'develop':60B 'header':48B 'http':51B 'incom':50B 'local':26B,68B 'local-dev':25B 'make':58B 'malici':54B 'mcp':28B,34B 'mendix':30B,37B 'mendix-studio-pro':29B 'origin':47B 'page':56B 'pro':32B,39B 'request':52B,65B 'send':63B 'server':35B,69B 'studio':31B,38B 'tool':24B 'trigger':71B 'type':45B 'unauthor':64B 'unintend':72B 'valid':42B 'web':55B","search_c":"'11':83C '11.12':91C 'action':145C 'affect':97C 'allow':127C 'browser':137C 'content':106C 'content-typ':105C 'could':126C 'cross':120C 'cross-sit':119C 'csrf':124C 'execut':143C 'forgeri':123C 'header':110C 'http':113C 'identifi':78C 'incom':112C 'leav':115C 'local':148C 'malici':129C 'mcp':99C,149C 'mendix':80C,88C 'origin':109C 'page':131C 'pro':82C,90C 'product':98C 'proper':103C 'request':114C,122C,141C 'send':139C 'server':100C,150C 'site':121C 'studio':81C,89C 'trick':133C 'type':107C 'unauthor':140C 'unintend':144C 'user':135C 'v11.12.6':94C 'v11.12.7':95C 'v11.15.0':86C 'v11.16.0':87C 'valid':104C 'version':85C,93C 'vulner':75C,117C 'web':130C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T12:17:16+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/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","cvss_by":"productcert@siemens.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112137","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112137","severity":null,"published_at":"2026-11-10T12:17:16+00:00","modified_at":"2026-11-10T12:17:16+00:00","first_seen_at":"2026-11-10T12:21:53+00:00","fetched_at":"2026-11-10T12:21:53+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}