CyberRota Analysis
AI-GeneratedThe vulnerability resides in the cloud-healthcare-fhir-fetch-page tool, which improperly validates the pageURL parameter, allowing attackers to exploit Server-Side Request Forgery (SSRF) and exfiltrate OAuth/service-account access tokens. This could lead to unauthorized access to sensitive data, including Protected Health Information (PHI) and other Google Cloud Platform services. Organizations utilizing this tool, particularly those handling healthcare data, should prioritize immediate remediation to mitigate potential data breaches.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
A Server-Side Request Forgery (SSRF) and credential exfiltration vulnerability exists in the cloud-healthcare-fhir-fetch-page tool of googleapis/mcp-toolbox. The tool takes an unvalidated pageURL parameter from the client and issues an HTTP GET request to it using an authenticated client. The underlying transport automatically attaches an Authorization: Bearer header to every outbound request regardless of the destination host. An attacker can supply an arbitrary external URL to the pageURL parameter (either directly via the tool execution payload or implicitly via data-driven pagination tracking loops), leading Toolbox into sending its OAuth/service-account access token to an attacker-controlled listener. Depending on the configuration, this leaks either the end-user's token or the broader service-account access token (ADC), potentially exposing Protected Health Information (PHI) and secondary Google Cloud Platform services.