High severity · published Aug 24, 2026
CVE-2026-76836
AzuraCast through 0.23.8 Liquidsoap Configuration Write via Profile Edit Serialization Group Bypass
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AZ
AzuraCast · AzuraCast
through 0.23.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76836
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76836
github.com
https://github.com/AzuraCast/AzuraCast
github.com
https://github.com/AzuraCast/AzuraCast/blob/0.23.8/backend/src/Entity/Station.php
github.com
https://github.com/AzuraCast/AzuraCast/blob/0.23.8/backend/src/Radio/Backend/Liquidsoap/ConfigWriter.php
github.com
https://github.com/AzuraCast/AzuraCast/security/advisories/GHSA-q8wg-3qg7-8pc7
www.vulncheck.com
https://www.vulncheck.com/advisories/azuracast-through-liquidsoap-configuration-write-via-profile-edit-serialization-group-bypass
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