CVE-2025-6514

mcp-remote Conecta un Cliente MCP que solo soporta servidores locales stdio a un Servidor MCP Remoto, con soporte de autenticación: Nota: esto es una prueba de concepto funcional pero debe considerarse experimental. ¿Por qué es necesario? Hasta ahora, la mayoría de los servidores MCP existentes s...

CVE-2026-91988 atomic-agents-stack before 1.1.0 Remote Code Execution via HTTP MCP

atomic-agents-stack before 1.1.0 accepts cleartext HTTP schemes in the HTTP MCP server-registry backend factory, allowing network man-in-the-middle attackers to rewrite catalog responses. Attackers can inject arbitrary command and argument values that are spawned as local subprocesses by...

CVE-2026-90898 Bifrost unauthenticated remote code execution via MCP stdio client registration

Bifrost registers MCP clients through its management API. A stdio client is a command plus args. Bifrost starts that program in the gateway the moment the client is added. No MCP handshake required. The default is governance.authconfig.isenabled=false. Auth off means every caller is a local admin...

EUVD-2026-77357

Bifrost registers MCP clients through its management API. A stdio client is a command plus args. Bifrost starts that program in the gateway the moment the client is added. No MCP handshake required. The default is governance.authconfig.isenabled=false. Auth off means every caller is a local admin...

CVE-2026-90898 Bifrost unauthenticated remote code execution via MCP stdio client registration

Bifrost registers MCP clients through its management API. A stdio client is a command plus args. Bifrost starts that program in the gateway the moment the client is added. No MCP handshake required. The default is governance.authconfig.isenabled=false. Auth off means every caller is a local admin...

CVE-2026-59809 SiYuan before v3.8.0 Secret Exfiltration via http_request URL

SiYuan before v3.8.0 interpolates secret placeholders into the destination URL parameter of the httprequest MCP tool, allowing attackers to exfiltrate stored secrets. An MCP client can craft a request with an attacker-controlled URL containing secret placeholders to send plaintext secret values t...

EUVD-2026-64267

SiYuan before v3.8.0 interpolates secret placeholders into the destination URL parameter of the httprequest MCP tool, allowing attackers to exfiltrate stored secrets. An MCP client can craft a request with an attacker-controlled URL containing secret placeholders to send plaintext secret values t...

PYSEC-2026-3683 mcp-atlassian: Arbitrary file read via missing path validation in confluence_upload_attachment

Summary confluenceuploadattachment passes filepath directly to openfilepath, "rb" with no path validation. Any authenticated MCP client — or an AI agent manipulated via prompt injection — can read any file the server process can access and exfiltrate it to Confluence as an attachment. Details Roo...

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

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...

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

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...

EUVD-2026-61136

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...

atomic-agents-stack: HTTP MCP catalog accepts cleartext http and spawns catalog-supplied commands (MITM to RCE)

The HTTP MCP server-registry backend factory atomicagents/mcpregistry/http.py, makehttpmcpserverregistrybackendfromurl accepts both http and https schemes. Catalog entries carry command/args that are type-validated but content-unrestricted, and are later spawned as local stdio subprocesses by...

CVE-2026-74798: Improper Limitation of a Pathname to a Restricted Directory

SiYuan kernel before v3.7.4 contains a path traversal vulnerability in the databaseclean MCP tool. The tool performs only an empty-string check on the id parameter before passing it to RemoveUnusedAttributeView kernel/model/attributeview.go, which builds a filesystem path via filepath.Join withou...

Token Optimizer MCP: OS command injection in smart_user via username in get-user-info

Summary token-optimizer-mcp is vulnerable to OS command injection in the smartuser tool. The get-user-info operation accepts a user-controlled username argument and later interpolates it into a shell command executed through execAsync: ts getent passwd "$username" || grep "^$username:" /etc/passw...

CVE-2026-72768

n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection...

EUVD-2026-56094

n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection...

CVE-2026-72768 n8n before 2.32.1 SSRF Protection Bypass via MCP Client

n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection...

CVE-2026-72768 n8n before 2.32.1 SSRF Protection Bypass via MCP Client

n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection...

CVE-2026-72768 n8n before 2.32.1 SSRF Protection Bypass via MCP Client

n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection...

CVE-2026-72768

n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection...