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CVE-2026-58201

CVE-2026-58201 · Lokka: Azure Resource Manager URL path validation issue

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 8.7 · High · EPSS 0.5% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • lokka

    Versions
    • < 2.1.2: Affected

    No fix published

  • @merill/lokka npm

    Affected ranges
    • SEMVER: < 2.1.2

    Update to 2.1.2

Original sources

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