{"id":"CVE-2026-14537","summary":"Authorization Bypass in MCP Toolbox Legacy HTTP Endpoints","details":"Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox versions v1.3.0 and v1.4.0 allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature via sending tool invocation requests through legacy HTTP endpoints when the --enable-api flag is active.","modified":"2026-08-12T03:51:12.424173097Z","published":"2026-07-31T01:38:18.978Z","database_specific":{"cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14537.json","cna_assigner":"Google"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14537.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14537"},{"type":"FIX","url":"https://github.com/googleapis/mcp-toolbox/pull/3435"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/googleapis/mcp-toolbox","events":[{"introduced":"b0010060a939455d91e4f8ba62dc3e72b1892469"},{"last_affected":"d67cfbe8ddca5a50c9577ea11feaf5c94d0acace"}],"database_specific":{"cpe":["cpe:2.3:a:google:mcp_toolbox_for_databases:1.3.0:*:*:*:*:*:*:*","cpe:2.3:a:google:mcp_toolbox_for_databases:1.4.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.3.0"},{"last_affected":"1.3.0"},{"introduced":"v1.4.0"},{"last_affected":"v1.4.0"},{"introduced":"1.4.0"},{"last_affected":"1.4.0"}],"source":["AFFECTED_FIELD","CPE_STRING"]}}],"versions":["1.3.0","1.4.0","v1.4.0","v1.3.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-14537.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U"}]}