Is CVE-2026-45582 actively exploited?

No active exploitation of CVE-2026-45582 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-45582 be exploited remotely?

Yes. CVE-2026-45582 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-45582?

CVE-2026-45582 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-45582

CWE-201Published: May 29, 2026· Updated: Jun 1, 2026

6.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:9.2th

Official Description

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.51.3, the workflow telemetry sanitizer could retain partial fragments of URL-shaped node parameters before sending workflow data to the project's anonymous telemetry backend. Values placed in HTTP-Request-style node parameters — such as customer or tenant identifiers, short secrets embedded in query strings, and signed request parameters — could therefore appear in stored telemetry, contrary to the collection boundary documented in PRIVACY.md. This vulnerability is fixed in 2.51.3.

NVD Source

Technical Analysis

CVE-2026-45582 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.