---
id: "CVE-2026-101632"
kind: "vulnerability"
aliases: ["CVE-2026-101632"]
title: "MySQL Router: unauthenticated flaw leaks a subset of router data"
severity: "medium"
cvss: 4.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["mysql", "mysql-router", "package", "self-hosted"]
not_affected_if: ["default-config"]
published_at: "2026-10-20T22:18:17+00:00"
first_seen_at: "2026-10-23T21:57:22+00:00"
updated_at: "2026-10-25T04:39:14+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101632", "first_seen_at": "2026-10-23T21:57:22+00:00"}]
---

# MySQL Router: unauthenticated flaw leaks a subset of router data

A flaw in the General component of MySQL Router 26.7.0 lets an unauthenticated attacker reach the router over HTTPS and read a subset of the data it can access. Exploitation needs a person other than the attacker to take an action.

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

## How to check

- Run `mysqlrouter --version` and compare against `26.7.0`
- unknown

## Fix

- Upgrade MySQL Router past `26.7.0` using the fixed release from Oracle's advisory
- unknown

## Timeline

- 2026-10-23T21:57:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101632

## From the sources

Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General).   The supported version that is affected is 26.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise MySQL Router.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in  unauthorized read access to a subset of MySQL Router accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N).

---

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