Server-side Request Forgery (SSRF) Affecting @apify/actors-mcp-server package, versions <0.10.11


Severity

Recommended
0.0
high
0
10

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  • Snyk IDSNYK-JS-APIFYACTORSMCPSERVER-17817057
  • published4 Jul 2026
  • disclosed1 Jul 2026
  • creditUnknown

Introduced: 1 Jul 2026

NewCVE-2026-50143  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade @apify/actors-mcp-server to version 0.10.11 or higher.

Overview

@apify/actors-mcp-server is an Apify MCP Server

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the webServerMcpPath field in the Actor definition, which is concatenated with a trusted base URL without proper validation. An attacker can cause sensitive authorization tokens to be sent to an arbitrary server by publishing a crafted Actor with a malicious webServerMcpPath value, resulting in exfiltration of credentials during outbound HTTP requests.

CVSS Base Scores

version 4.0
version 3.1