CVE-2026-113610

medium

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 t…

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.

CVSS

5.4

5.4 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)

Timeline (UTC)

Published: 2026-10-20 16:17

Modified: 2026-10-20 20:11

NVD status: Deferred

Last synced 1 day ago

Verified against the source API 2026-10-27 07:04 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-639

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://github.com/vatesfr/xen-orchestra/blob/f187b7931988e3e5c9ccd58abe730d6b006cc246/pac... disclosure@vulncheck.com
https://github.com/vatesfr/xen-orchestra/commit/3dbf8738f1e682b96ade2074dc84bee02a0c2d48 disclosure@vulncheck.com
https://github.com/vatesfr/xen-orchestra/security/advisories/GHSA-mc4m-hc98-rhmv disclosure@vulncheck.com
https://www.vulncheck.com/advisories/xen-orchestra-before-6.9.0-authorization-bypass-via-u... disclosure@vulncheck.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 07:04 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores