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Medium

OpenReception: race condition in add-to-tunnel and create-new-client allows overlapping appointments for one agent

Type: advisorySource: Official CVE List1 source record

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 2.2.2, an attacker overbooks an agent, placing multiple appointments into a single time slot that the system is designed to keep exclusive. The number of overlapping appointments equals the number of concurrent requests, and one booking token is enough because the token is consumed after the insert. This results in the integrity of the booking-calendar breaking and availability being denied to other clients. This issue has been patched in version 2.2.2.

Announced Source revision 1
Original source ↗

CVE-2026-75524

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-75524

appointment-booking-software

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "open-reception",
    "product": "appointment-booking-software",
    "versions": [
      {
        "status": "affected",
        "version": "< 2.2.2"
      }
    ]
  }
]
Related CVEs
CVE-2026-75524

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#53215 · Revision 1
Added to Heist Feed
Publisher date
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