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CVE-2026-48080— OpenReception's tenant detail endpoint discloses live PostgreSQL connection string, superuser-scoped in the tested official deployment

Quick assessment

Affected
open-reception appointment-booking-software
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

open-reception appointment-booking-software是open-reception组织的一款预约安排软件。 open-reception appointment-booking-software 1.0.2之前版本存在信息泄露漏洞，该漏洞源于GET /api/tenants/{id}端点返回完整租户记录，包括databaseUrl字段，可能导致经过身份验证的租户管理员读取其他租户敏感数据或修改、删除数据。

CVSS 8.0 · High EPSS 0.47% · P38

Affected Version Matrix 1

VendorProduct Version RangeStatus
open-reception appointment-booking-software < 1.0.2 affected
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I. Basic Information for CVE-2026-48080

Vulnerability Information
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Vulnerability Title
OpenReception's tenant detail endpoint discloses live PostgreSQL connection string, superuser-scoped in the tested official deployment
Source: CVE Program / CVE List V5
Vulnerability Description
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.0.2, the `GET /api/tenants/{id}` endpoint returns the full tenant record to any authenticated `TENANT_ADMIN` of that tenant, including the `databaseUrl` field. This field contains the live PostgreSQL connection string the application uses to connect to that tenant's database. In the tested official `docker-compose.prod.yml` deployment, the connection string contained the user `postgres` with `rolsuper=true` and the plaintext password from `secrets/postgres_password.txt`. Operators who configure a non-superuser PostgreSQL user via `secrets/postgres_user.txt` would expose a less privileged credential, but the disclosure of the connection string itself is independent of that choice. The same credential applies to every database managed by that PostgreSQL instance: the central `appointment_booking` database, every per-tenant database (one per tenant), and the postgres administrative database. A `TENANT_ADMIN` of one tenant who can reach `postgres:5432` (directly via internal network, indirectly via any SSRF, RCE, or file-read in the application) can read every other tenant's appointment ciphertexts, key shares, and metadata; read the central user table, including all `GLOBAL_ADMIN` accounts, password hashes, and session records; modify or delete any data in any tenant database; and/or i a superuser-scoped deployment: use PostgreSQL's `pg_read_server_files`, `COPY ... FROM PROGRAM`, and `CREATE EXTENSION` for further escalation inside the database container. This breaks the per-tenant database isolation that is otherwise the primary cross-tenant control in the application. The application code carefully scopes most queries to the calling tenant's database, but those scopings are irrelevant once the attacker holds the credentials that bypass the application entirely. Version 1.0.2 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
open-reception appointment-booking-software 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
open-reception appointment-booking-software是open-reception组织的一款预约安排软件。 open-reception appointment-booking-software 1.0.2之前版本存在信息泄露漏洞，该漏洞源于GET /api/tenants/{id}端点返回完整租户记录，包括databaseUrl字段，可能导致经过身份验证的租户管理员读取其他租户敏感数据或修改、删除数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-reception appointment-booking-software < 1.0.2 -

II. Public POCs for CVE-2026-48080

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Qwen3.6-35B-A3B · 8433 chars
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III. Intelligence Information for CVE-2026-48080

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Patches & Fixes for CVE-2026-48080 (1)

Vendor Advisories for CVE-2026-48080 (1)

Same Patch Batch · open-reception · 2026-08-06 · 16 CVEs total

CVE-2026-48086 9.9 CRITICAL OpenReception: Tenant admin self-promotes to GLOBAL_ADMIN
CVE-2026-48087 9.8 CRITICAL OpenReception: WebAuthn passkey injection allows account takeover
CVE-2026-48085 9.8 CRITICAL OpenReception has unauthenticated GLOBAL_ADMIN account creation post-bootstrap
CVE-2026-48088 9.4 CRITICAL OpenReception vulnerable to unauthenticated staff crypto poisoning that breaks E2E recipie
CVE-2026-48081 8.1 HIGH OpenReception vulnerable to stored click-triggered XSS via javascript: tenant links render
CVE-2026-48084 7.4 HIGH OpenReception doesn't rate limit passphrase login attempts
CVE-2026-48079 7.4 HIGH OpenReception's logout page clears local access_token before server-side revocation, leavi
CVE-2026-48076 6.5 MEDIUM OpenReception's bootstrap booking flow allows unauthenticated booking on isPublic=false ch
CVE-2026-48083 6.5 MEDIUM OpenReception: Unauthenticated POST /api/log accepts arbitrary content with CRLF injection
CVE-2026-48075 6.5 MEDIUM OpenReception's unauthenticated add-to-tunnel endpoint accepts arbitrary appointment injec
CVE-2026-48071 5.8 MEDIUM OpenReception's client PIN challenge throttle is keyed by emailHash only, allowing cross-t
CVE-2026-48078 5.3 MEDIUM OpenReception's schedule endpoint discloses isPublic=false channels and slot availability
CVE-2026-48077 5.3 MEDIUM OpenReception: GET appointment by ID returns full appointment record without authorization
CVE-2026-48082 3.7 LOW OpenReception's bootstrap challenge proof-of-work difficulty hardcoded to 16 bits, which e
CVE-2026-48074 2.7 LOW OpenReception: Staff deletion removes pending invites cross-tenant by email match

IV. Related Vulnerabilities

Same product: appointment-booking-software
Same vendor: open-reception
Same weakness: CWE-200

V. Comments for CVE-2026-48080

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