---
id: "CVE-2026-105664"
kind: "vulnerability"
aliases: ["CVE-2026-105664"]
title: "Endpoint leaks which device IDs are registered through differing error codes"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["api", "device-registry", "other"]
not_affected_if: []
published_at: "2026-10-16T14:17:14+00:00"
first_seen_at: "2026-10-23T21:57:13+00:00"
updated_at: "2026-10-25T03:42:30+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105664", "first_seen_at": "2026-10-23T21:57:13+00:00"}]
---

# Endpoint leaks which device IDs are registered through differing error codes

The endpoint returns a different error code for nonexistent IDs than for valid registered IDs. An attacker with any valid access token can use this to enumerate registered devices across the 10-digit ID space, since rate limiting is weak.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-10-23T21:57:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-105664

## From the sources

The endpoint exposes an observable response discrepancy when processing ID values. A request submitted with a nonexistent ID returns a distinct error response code from one submitted with a valid, registered ID, allowing an attacker holding a valid access token - but without further authentication or authorization - to distinguish valid ID values from the full 10-digit numeric search space. Combined with the absence of meaningful rate limiting on this endpoint, this discrepancy constitutes an enumeration oracle, enabling an attacker to discover registered devices at scale.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_