# CVE-2026-48077: OpenReception: GET appointment by ID returns full appointment record without authorization

> Attackers can retrieve full appointment records, including encrypted data, by accessing a specific API endpoint without authentication.

- **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:** 7 Aug 2026
- **Also known as:** GHSA-8547-9x2c-9vmf

## What is CVE-2026-48077?

CVE-2026-48077 is a medium-severity missing authorization 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 1.1.0, the GET handler at `/api/tenants/{id}/appointments/{appointmentId}` performs no authorization check before returning the appointment record. Any party who knows or obtains a valid appointment UUID receives the full row, including channel and agent IDs, time and timezone, status, and the AES-GCM ciphertext components (`encryptedPayload`, `iv`, `authTag`, `dataKey`). The same file's DELETE handler calls `checkPermission(locals, tenantId, true)` before allowing deletion. The intent is clear: appointment records are tenant-scoped and require authentication to access. The GET handler is missing the equivalent call. The middleware chain (`apiAuthHandle`, `authGuard`) does not compensate: API paths bypass `authGuard` entirely, and `apiAuthHandle` does not block requests to non-admin paths when no token is present. Version 1.1.0 patches the issue.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-48077?


## How do I fix CVE-2026-48077?

No fix has been published for CVE-2026-48077 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-48077 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48077 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48077 and fix it if it is affected.

What it is: CVE-2026-48077 is a medium-severity missing authorization 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-2026-48077 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-2026-48077/ (Markdown: https://insights.sbomify.com/CVE-2026-48077/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48077
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48077
- OSV: https://osv.dev/vulnerability/CVE-2026-48077

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-48077/
Summaries are generated and may contain mistakes; the official description above is the record.