{"id":5167,"date":"2026-09-04T18:47:03","date_gmt":"2026-09-04T10:47:03","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-48039"},"modified":"2026-09-04T18:47:03","modified_gmt":"2026-09-04T10:47:03","slug":"cve-2026-48039","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-48039","title":{"rendered":"CVE-2026-48039 [CRITICAL] &#8211; Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads"},"content":{"rendered":"<p>Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads. Prior to version 1.0.109, `AuthInjectionMiddleware.dispatch()` at `http_auth_integration.py:272` unconditionally forwards unauthenticated Streamable HTTP requests to downstream MCP tool handlers without issuing a `401` response, allowing any network-reachable caller to invoke MCP tools without authentication. When no per-request credential is present, tool handlers fall back to the `META_ACCESS_TOKEN` environment variable, and when the downstream Meta Graph API call fails, `api.py:263\u2013269` serialises the raw `httpx` request URL\u2014including the operator&#8217;s `access_token` as a query parameter\u2014into the JSON-RPC response body, delivering the credential to the unauthenticated caller. Version 1.0.109 fixes the issue.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads. Prior to version 1.0.109, `AuthInjectionMiddleware.dispatch()` at `http_auth_integration.py:272` uncondition<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-5167","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/5167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}