OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. In versions 2.1.0 and prior, a returning client's six-digit booking PIN can be brute-forced online in the victim tenant. A successful guess yields the client's booking access token, granting access to that client's appointment tunnel, which holds their end-to-end-encrypted appointment data, and the ability to act as the client, for example adding or cancelling appointments in the tunnel. The bypass is cross-tenant: state owned by one tenant removes an authentication protection of a different tenant. This crossing of the tenant boundary is the basis for the scope-changed vector. At time of publication, there are no publicly available patches.
History

Mon, 26 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 23 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Open-reception
Open-reception appointment-booking-software
Vendors & Products Open-reception
Open-reception appointment-booking-software

Fri, 23 Oct 2026 20:45:00 +0000

Type Values Removed Values Added
Description OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. In versions 2.1.0 and prior, a returning client's six-digit booking PIN can be brute-forced online in the victim tenant. A successful guess yields the client's booking access token, granting access to that client's appointment tunnel, which holds their end-to-end-encrypted appointment data, and the ability to act as the client, for example adding or cancelling appointments in the tunnel. The bypass is cross-tenant: state owned by one tenant removes an authentication protection of a different tenant. This crossing of the tenant boundary is the basis for the scope-changed vector. At time of publication, there are no publicly available patches.
Title OpenReception: one tenant's throttle row disables the PIN brute-force throttle for the same identifier in other tenants
Weaknesses CWE-307
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-10-23T20:29:17.174Z

Updated: 2026-10-26T17:45:38.981Z

Reserved: 2026-07-22T23:16:47.752Z

Link: CVE-2026-65825

cve-icon Vulnrichment

Updated: 2026-10-26T15:39:11.199Z

cve-icon NVD

Status : Deferred

Published: 2026-10-23T21:17:24.870

Modified: 2026-10-26T18:17:50.167

Link: CVE-2026-65825

cve-icon Redhat

No data.