AIKIDO-2025-10583
@modelcontextprotocol/sdk is vulnerable to Cross-site Scripting (XSS)
57
Medium Risk
This Affects:
@modelcontextprotocol/sdkTL;DR
Affected versions of this package are vulnerable to cross-site scripting (XSS). A malicious authorization server could supply OAuth endpoints with unsafe URL schemes (e.g., javascript:, data:, or file:), which, when processed by OAuth clients, could enable XSS or remote code execution (RCE) attacks.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
@modelcontextprotocol/sdk is vulnerable to Cross-site Scripting (XSS) in versions 0.0.1 - 1.17.3.
How to fix this
Upgrade the @modelcontextprotocol/sdk library to the patch version.
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SOC 2Compliant
ISO 27001Compliant