Server-side Request Forgery (SSRF) Affecting @merill/lokka package, versions <2.1.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-MERILLLOKKA-17818143
- published5 Jul 2026
- disclosed19 Jun 2026
- credithackchang
Introduced: 19 Jun 2026
CVE-2026-58201 (opens in a new tab)How to fix?
Upgrade @merill/lokka to version 2.1.2 or higher.
Overview
@merill/lokka is a Lokka is a Model Context Protocol (MCP) server for Microsoft Graph.
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via improper validation of user-supplied input in the process constructing Azure Resource Manager request URLs. An attacker can cause bearer tokens to be sent to an unintended host by supplying specially crafted path values.