CVE-2026-113610

Medium

Description

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.

SeverityMedium

CVSS5.4

Exploit probability—

ProductVatesfr Xen-orchestra

PublishedOct 20, 2026

First seenOct 20, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

vatesfr xen-orchestra6.9.0 or later

Patches

github.com/vatesfr/xen-orchestra/commit/3dbf8738f1e682b96ade2074dc84bee02a0c2d48

Vendor advisories

github.com/vatesfr/xen-orchestra/security/advisories/GHSA-mc4m-hc98-rhmv

Affected products

Product	Affected versions	Fixed in
vatesfr xen-orchestra	v < 6.9.0	6.9.0

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