CVE-2026-65825 (GCVE-0-2026-65825)

Vulnerability from cvelistv5 – Published: 2026-10-23 20:29 – Updated: 2026-10-26 17:45
VLAI
Title
OpenReception: one tenant's throttle row disables the PIN brute-force throttle for the same identifier in other tenants
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 15:39 UTC
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7774 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
open-reception appointment-booking-software Affected: <= 2.1.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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