---
id: CVE-2026-50143
title: >-
  The Apify MCP server enables AI agents to extract data from websites using
  ready-made scrapers, crawlers, and automation tools available on the Apify
  Store
summary: >-
  The Apify MCP server enables AI agents to extract data from websites using
  ready-made scrapers, crawlers, and automation tools available on the Apify
  Store. Prior to 0.10.11, getActorMCPServerURL in src/mcp/actors.ts
  concatenates the tru…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'
cwe:
  - CWE-918
vendor: apify
product: '@apify/actors-mcp-server'
affected:
  - '@apify/actors-mcp-server < 0.10.11'
patched:
  - '@apify/actors-mcp-server 0.10.11'
published: '2026-08-18'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:09:01.757'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-50143'
references:
  - url: >-
      https://github.com/apify/apify-mcp-server/commit/ef686d77da3d3c86c30b2ae24218d756aa38e09c
    label: security-advisories@github.com
  - url: 'https://github.com/apify/apify-mcp-server/pull/927'
    label: security-advisories@github.com
  - url: 'https://github.com/apify/apify-mcp-server/releases/tag/v0.10.11'
    label: security-advisories@github.com
  - url: >-
      https://github.com/apify/apify-mcp-server/security/advisories/GHSA-6gr2-qh89-hxwm
    label: security-advisories@github.com
  - url: >-
      https://github.com/apify/apify-mcp-server/security/advisories/GHSA-6gr2-qh89-hxwm
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-6gr2-qh89-hxwm'
tags:
  - nvd
  - ghsa
  - npm
epss: 0.00488
epssPercentile: 0.39393
ecosystem: npm
ingestedAt: '2026-07-01T22:17:35.204Z'
---

## Overview

The Apify MCP server enables AI agents to extract data from websites using ready-made scrapers, crawlers, and automation tools available on the Apify Store. Prior to 0.10.11, getActorMCPServerURL in src/mcp/actors.ts concatenates the trusted Actor standby URL with the attacker-controlled webServerMcpPath from an Actor definition without verifying the resulting origin, allowing a malicious Actor publisher to use a userinfo-style authority value to redirect connectMCPClient to a third-party host. The call-actor, fetch-actor-details, and actor-mcp tool-loading paths pass this URL to transports in src/mcp/client.ts that attach the victim Authorization bearer token, exposing the Apify API token and enabling access to Actors, stored data, and billable compute. A victim must invoke or inspect the attacker-controlled Actor. This issue is fixed in version 0.10.11.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-50143)

Affected packages:

- `@apify/actors-mcp-server < 0.10.11`

Patched in:

- `@apify/actors-mcp-server 0.10.11`

Source: https://github.com/advisories/GHSA-6gr2-qh89-hxwm