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CVE-2026-76836— AzuraCast through 0.23.8 Liquidsoap Configuration Write via Profile Edit Serialization Group Bypass

Quick assessment

Affected
AzuraCast AzuraCast
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.

AzuraCast是AzuraCast团队开源的一款自托管网络电台广播套件。 AzuraCast 0.23.8及之前版本存在安全漏洞，该漏洞源于通过无需权限的端点暴露Liquidsoap自定义配置字段，且反序列化时缺少字段级权限检查，导致自定义配置可写并写入生成的Liquidsoap脚本，可能使低权限攻击者在后端重启时执行操作系统命令。

CVSS 8.8 · High EPSS 0.41% · P34

Affected Version Matrix 1

VendorProduct Version RangeStatus
AzuraCast AzuraCast ≤ 0.23.8 affected
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I. Basic Information for CVE-2026-76836

Vulnerability Information
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Vulnerability Title
AzuraCast through 0.23.8 Liquidsoap Configuration Write via Profile Edit Serialization Group Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
AzuraCast 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AzuraCast是AzuraCast团队开源的一款自托管网络电台广播套件。 AzuraCast 0.23.8及之前版本存在安全漏洞，该漏洞源于通过无需权限的端点暴露Liquidsoap自定义配置字段，且反序列化时缺少字段级权限检查，导致自定义配置可写并写入生成的Liquidsoap脚本，可能使低权限攻击者在后端重启时执行操作系统命令。
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
AzuraCast AzuraCast 0 ~ 0.23.8 -

II. Public POCs for CVE-2026-76836

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 9568 chars
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III. Intelligence Information for CVE-2026-76836

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Vendor Advisories for CVE-2026-76836 (1)

Other References for CVE-2026-76836 (1)

IV. Related Vulnerabilities

Same product: AzuraCast
Same vendor: AzuraCast
Same weakness: CWE-94

V. Comments for CVE-2026-76836

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