CVE-2026-54052: czlonkowski n8n-mcp, заобикаляне на вход и права

Описание

Оригинално описание

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.56.1, in HTTP mode with multi-tenancy enabled through ENABLE_MULTI_TENANT=true, n8n-mcp's local workflow version history backups were not isolated per tenant, allowing an authenticated tenant to read workflow version snapshots belonging to other tenants and delete or destroy other tenants' stored backups, including full node definitions, credential references, and authorization headers. This issue is fixed in version 2.56.1.

Засегнати продукти

• czlonkowski n8n-mcp: < 2.56.1

Вид слабост

• CWE-639 Authorization Bypass Through User-Controlled Key
• CWE-862 Missing Authorization

История

Други уязвимости в czlonkowski n8n-mcp

• 4.2CVE-2026-55608
• 6.5CVE-2026-45582
• 8.1CVE-2026-45707
• 7.2CVE-2026-44694
• 4.3CVE-2026-42282

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-54052
• https://nvd.nist.gov/vuln/detail/CVE-2026-54052
• https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-j6r7-6fhx-77wx
• https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.56.1