# CVE-2026-48078: OpenReception's schedule endpoint discloses isPublic=false channels and slot availability to unauthenticated callers

> Unauthenticated attackers can view private channel details and slot availability in OpenReception, exposing internal scheduling data.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Aug 2026
- **Updated:** 8 Aug 2026
- **Also known as:** GHSA-v6fw-m2mg-5gr9

## What is CVE-2026-48078?

CVE-2026-48078 is a medium-severity vulnerability in open-reception appointment-booking-software, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.0.5, the unauthenticated `/api/tenants/{id}/schedule` endpoint returns every non-archived channel for a tenant regardless of the channel's `isPublic` flag. Channels marked `isPublic = false` are intended to be invisible to public callers; the dashboard creates them deliberately to hide internal-only services from the patient booking UI. The schedule endpoint ignores the flag entirely and discloses channel names, descriptions, IDs, agent associations, pause status, confirmation requirements, and computed slot availability for the requested date range. The asymmetry between `addAppointmentToTunnel` (which enforces `eq(channel.isPublic, true)`) and the schedule endpoint (which does not) confirms the design intent: private channels exist as a real access boundary in the booking flow, just not in the schedule disclosure. Version 1.0.5 patches the issue.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-48078?


## How do I fix CVE-2026-48078?

No fix has been published for CVE-2026-48078 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-48078 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48078 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48078 and fix it if it is affected.

What it is: CVE-2026-48078 is a medium-severity vulnerability in open-reception appointment-booking-software, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48078 exists.

Affected product: open-reception appointment-booking-software. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-48078/ (Markdown: https://insights.sbomify.com/CVE-2026-48078/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48078
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48078
- OSV: https://osv.dev/vulnerability/CVE-2026-48078

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-48078/
Summaries are generated and may contain mistakes; the official description above is the record.