---
id: CVE-2026-76836
title: >-
  AzuraCast exposes the Liquidsoap custom configuration fields through an
  endpoint that does not require the permission guarding them
summary: >-
  AzuraCast exposes the Liquidsoap custom configuration fields through an
  endpoint that does not require the permission guarding them. The
  backend_config property in backend/src/Entity/Station.php is annotated with
  GROUP_GENERAL, and PUT /…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
  - CWE-863
published: '2026-08-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:43:32.537'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76836'
references:
  - url: 'https://github.com/AzuraCast/AzuraCast'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/AzuraCast/AzuraCast/blob/0.23.8/backend/src/Entity/Station.php
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/AzuraCast/AzuraCast/blob/0.23.8/backend/src/Radio/Backend/Liquidsoap/ConfigWriter.php
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/AzuraCast/AzuraCast/security/advisories/GHSA-q8wg-3qg7-8pc7
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/azuracast-through-liquidsoap-configuration-write-via-profile-edit-serialization-group-bypass
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/AzuraCast/AzuraCast/security/advisories/GHSA-q8wg-3qg7-8pc7
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00566
epssPercentile: 0.44551
ingestedAt: '2026-09-24T20:51:40.225Z'
---

## Overview

AzuraCast exposes the Liquidsoap custom configuration fields through an endpoint that does not require the permission guarding them. The backend_config property in backend/src/Entity/Station.php is annotated with GROUP_GENERAL, and PUT /api/station/{station_id}/profile/edit in backend/src/Controller/Api/Stations/ProfileEditController.php deserializes with that group while requiring only StationPermissions::Profile. AbstractArrayEntity::fromArray() then assigns every public property with no field-level permission check, so custom_config_top, custom_config, custom_config_pre_playlists, custom_config_pre_live, custom_config_pre_fade and custom_config_bottom are writable through it. ConfigWriter::writeCustomConfigurationSection() emits those values verbatim into the generated Liquidsoap .liq script, where the process.run() and process.exec() built-ins execute operating system commands when the backend restarts, which the built-in sync task triggers automatically once needs_restart is set. The dedicated endpoint for the same data, PUT /api/station/{id}/liquidsoap-config, requires StationPermissions::Broadcasting, so a station manager holding only the profile permission reaches configuration that the intended boundary reserves for broadcasting operators.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.