CVE-2026-48079 open-reception CVE debrief

Who should care

Users of OpenReception's appointment booking software, administrators, and security teams should be aware of this vulnerability and take necessary actions to protect their systems. They should review the official advisory, verify affected deployments, and apply patches or mitigations as needed. Additionally, they should monitor for suspicious API activity and review logout functionality to prevent similar issues.

Technical summary

The OpenReception appointment booking software has a vulnerability in its logout functionality. When a user navigates to the /logout page, the server-side load handler deletes the access_token cookie before calling /api/auth/logout. This causes the internal fetch to run without the auth cookie, leading to the logout handler not executing and SessionService.revokeSession() not being called for the current session. As a result, the DB session row remains valid until its natural expiry, allowing parties holding a copy of the now-deleted access token to continue making authenticated API calls.

Defensive priority

Authenticated users may have their sessions improperly revoked, allowing attackers to make API calls until the session expires.

Recommended defensive actions

• Verify and apply the patch to ensure proper session revocation
• Monitor for suspicious API activity
• Review and update logout functionality to prevent similar issues
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE record and NVD entry provide details about the vulnerability in OpenReception's appointment booking software. The issue lies in the logout functionality, where the access token cookie is deleted before the logout API call, potentially allowing attackers to make authenticated API calls until the session naturally expires. To verify, defenders should review the official advisory, check for affected product deployments, and monitor for suspicious API activity. Evidence limits suggest that the vulnerability's impact is primarily related to session revocation and API call authentication.

Official resources