---
id: "CVE-2026-93434"
kind: "vulnerability"
aliases: ["CVE-2026-93434"]
title: "WatchGuard Fireware OS: XPath injection in SSH login leaks configuration data"
severity: "high"
cvss: 8.7
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["firewall", "fireware-os", "infrastructure", "ssh", "watchguard"]
not_affected_if: ["management-ssh-disabled"]
published_at: "2026-10-27T16:17:32+00:00"
first_seen_at: "2026-10-27T16:33:07+00:00"
updated_at: "2026-10-27T16:34:04+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93434", "first_seen_at": "2026-10-27T16:33:07+00:00"}]
---

# WatchGuard Fireware OS: XPath injection in SSH login leaks configuration data

WatchGuard Fireware OS has an XPath injection flaw in its SSH authentication process. A remote attacker who can reach the management SSH interface can send a crafted request to extract sensitive configuration data.

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

## How to check

- Check the installed Fireware OS version on the appliance (unknown: the sources do not list affected versions)
- Confirm whether the management SSH interface is reachable from untrusted networks (unknown: the sources do not say how to check exposure)

## Fix

- Move to a patched Fireware OS release (unknown: the sources do not name the fixed version)
- Restrict management SSH access to trusted admin networks until patched

## Timeline

- 2026-10-27T16:33:07+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-93434

## From the sources

An XPath injection vulnerability in WatchGuard Fireware OS's SSH authentication process allows a remote, unauthenticated attacker with access to the management SSH interface to extract sensitive configuration data by submitting a specially crafted request.

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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_