{"id":"EUVD-2026-78934","enisaUuid":"0046936d-4c95-34d3-9c0c-878928150dda","description":"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.","datePublished":"Sep 15, 2026, 4:48:58 PM","dateUpdated":"Sep 15, 2026, 7:01:50 PM","baseScore":8.7,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/merill/lokka/security/advisories/GHSA-g2gw-q38m-vjfc\nhttps://github.com/merill/lokka/pull/47\nhttps://github.com/merill/lokka/commit/babead878f44cc2face2f8ee55d8b706e420947e\n","aliases":"CVE-2026-58201\n","assigner":"GitHub_M","epss":0.48,"enisaIdProduct":[{"id":"ea9be413-9162-314f-abf4-ddb90bcfafdb","product":{"name":"lokka","vendor":{"name":"merill"}},"product_version":"\u003c 2.1.2"}],"enisaIdVendor":[{"id":"8e2c97ff-c392-3b5c-a1b3-c68cb51f8a4e","vendor":{"name":"merill"}}],"enisaIdVulnerability":[{"id":"05f99a94-932f-3995-ac96-d485639cb8c8","vulnerability":{"id":"CVE-2026-58201","description":"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.","datePublished":"Sep 15, 2026, 4:48:58 PM","dateUpdated":"Sep 15, 2026, 7:01:50 PM","status":"PUBLISHED","baseScore":8.7,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/merill/lokka/security/advisories/GHSA-g2gw-q38m-vjfc\nhttps://github.com/merill/lokka/pull/47\nhttps://github.com/merill/lokka/commit/babead878f44cc2face2f8ee55d8b706e420947e\n","enisa_id":"EUVD-2026-78934\n","assigner":"GitHub_M","epss":0.48,"dataProcessed":"Nov 5, 2026, 7:18:05 AM","vulnerabilityProduct":[{"id":"bae456c6-ad7c-38ba-9fe2-ac74accd76a2","product":{"name":"lokka","vendor":{"name":"merill"}},"product_version":"\u003c 2.1.2"}],"vulnerabilityVendor":[{"id":"0354f0eb-3c19-3a14-a5c2-04888c592df3","vendor":{"name":"merill"}}]}}],"enisaIdAdvisory":[]}