---
id: "CVE-2026-113610"
kind: "vulnerability"
aliases: ["CVE-2026-113610"]
title: "Xen Orchestra: low-privileged users can alter other users' 2FA and credentials"
severity: "medium"
cvss: 5.4
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "self-hosted", "virtualization", "xen-orchestra"]
not_affected_if: ["patched-6.9.0-or-later", "single-user-instance"]
published_at: "2026-10-20T16:17:11+00:00"
first_seen_at: "2026-10-23T21:57:20+00:00"
updated_at: "2026-10-25T04:16:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113610", "first_seen_at": "2026-10-23T21:57:20+00:00"}]
---

# Xen Orchestra: low-privileged users can alter other users' 2FA and credentials

Xen Orchestra's xo-server user.set API method does not check that the caller owns the target user id, so any authenticated low-privileged user can change other accounts. An attacker can delete another user's TOTP secret to turn off two-factor authentication, corrupt it to lock them out, or overwrite stored xsCredentials and SSH keys.

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

## How to check

- Check the installed xo-server version (the Xen Orchestra release) and compare it with `6.9.0`
- Review which accounts have low privileges and can log in to the Xen Orchestra web UI or API
- unknown

## Fix

- Upgrade Xen Orchestra to `6.9.0` or later
- After upgrading, review other users' 2FA settings, stored credentials and SSH keys for unexpected changes
- unknown

## Timeline

- 2026-10-23T21:57:20+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-113610

## From the sources

Xen Orchestra before 6.9.0 contains an authorization bypass vulnerability in the xo-server user.set API method that allows low-privileged authenticated users to modify other users' preferences by supplying an arbitrary target user id. Attackers can delete the preferences.otp TOTP secret to disable two-factor authentication, corrupt it to block logins, or overwrite stored xsCredentials and sshKeys.

---

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