{"id":"CVE-2026-58201","summary":"Lokka: Azure Resource Manager URL path validation issue","details":"Lokka is a Model Context Protocol server for Microsoft 365, including Microsoft Graph and other services. Prior to 2.1.2, the Lokka-Microsoft tool in src/mcp/src/main.ts uses direct URL string concatenation to append the user-controlled path value to the management.azure.com base URL. A specially crafted path can alter URL authority parsing and cause an Azure Resource Manager bearer token to be sent to an unintended host. This issue is fixed in version 2.1.2.","aliases":["GHSA-g2gw-q38m-vjfc"],"modified":"2026-09-17T03:46:56.344485320Z","published":"2026-09-15T16:48:58.802Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58201.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"fixed":"2.1.2"}]}],"cna_assigner":"GitHub_M","cwe_ids":["CWE-918"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58201.json"},{"type":"ADVISORY","url":"https://github.com/merill/lokka/security/advisories/GHSA-g2gw-q38m-vjfc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58201"},{"type":"FIX","url":"https://github.com/merill/lokka/commit/babead878f44cc2face2f8ee55d8b706e420947e"},{"type":"FIX","url":"https://github.com/merill/lokka/pull/47"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/merill/lokka","events":[{"introduced":"0"},{"fixed":"babead878f44cc2face2f8ee55d8b706e420947e"}],"database_specific":{"source":"REFERENCES"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58201.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:N/VA:N/SC:N/SI:N/SA:N"}]}