CVE-2026-113610CWE-639

CVE-2026-113610

Medium · published October 20, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
35.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00426 · 35.8th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-20T20:17Z
References (4)
https://github.com/vatesfr/xen-orchestra/blob/f187b7931988e3e5c9ccd58abe730d6b006cc246/packages/xo-server/src/api/user.mjs#L73-L93 · [email protected]https://github.com/vatesfr/xen-orchestra/commit/3dbf8738f1e682b96ade2074dc84bee02a0c2d48 · [email protected]https://github.com/vatesfr/xen-orchestra/security/advisories/GHSA-mc4m-hc98-rhmv · [email protected]https://www.vulncheck.com/advisories/xen-orchestra-before-6.9.0-authorization-bypass-via-user-set-api · [email protected]
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 20 OCT 15:40Z
    Xen Orchestra before 6.9.0 Authorization Bypass via user.set API
    cvelistv5
  • 20 OCT 15:40Z
    Xen Orchestra before 6.9.0 Authorization Bypass via user.set API
    cvelistv5