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CVE-2026-50143— Actor MCP path authority injection leaks Apify token

Quick assessment

Affected
apify apify-mcp-server
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apify MCP Server是Apify公司开源的一款用于代理消息的服务器软件。 Apify MCP Server 0.10.11之前版本存在服务端请求伪造漏洞，该漏洞源于getActorMCPServerURL函数将可信的Actor standby URL与攻击者控制的webServerMcpPath拼接且未验证结果来源，可能将客户端重定向至第三方主机，暴露Apify API token，导致攻击者能够访问Actors、存储数据和计费计算。

CVSS 8.1 · High EPSS 0.34% · P27

Affected Version Matrix 1

VendorProduct Version RangeStatus
apify apify-mcp-server < 0.10.11 affected
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I. Basic Information for CVE-2026-50143

Vulnerability Information
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Vulnerability Title
Actor MCP path authority injection leaks Apify token
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Apify MCP Server 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apify MCP Server是Apify公司开源的一款用于代理消息的服务器软件。 Apify MCP Server 0.10.11之前版本存在服务端请求伪造漏洞，该漏洞源于getActorMCPServerURL函数将可信的Actor standby URL与攻击者控制的webServerMcpPath拼接且未验证结果来源，可能将客户端重定向至第三方主机，暴露Apify API token，导致攻击者能够访问Actors、存储数据和计费计算。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
apify apify-mcp-server < 0.10.11 -

II. Public POCs for CVE-2026-50143

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7278 chars
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III. Intelligence Information for CVE-2026-50143

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Patches & Fixes for CVE-2026-50143 (2)

Vendor Advisories for CVE-2026-50143 (1)

Vendor Pages for CVE-2026-50143 (1)

IV. Related Vulnerabilities

Same product: apify-mcp-server
Same vendor: apify
Same weakness: CWE-918

V. Comments for CVE-2026-50143

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