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CVE-2026-100853— AzuraCast before 0.23.8 On-Demand Download Endpoint Authorization Bypass

Quick assessment

Affected
AzuraCast AzuraCast
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 AzuraCast 0.23.8 版本之前，其公开的按需下载（On-Demand）端点未能正确验证播放列表级别的访问控制，导致未认证用户能够下载被排除在启用了按需播放功能的播放列表之外的媒体文件。攻击者可以通过直接使用有效的媒体标识符向该下载端点发起请求，从而绕过电台操作员设定的访问限制，进而泄露受保护或受限的音频内容。

CVSS 5.9 · Medium EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-100853

Vulnerability Information
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Vulnerability Title
AzuraCast before 0.23.8 On-Demand Download Endpoint Authorization Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
In AzuraCast before 0.23.8, the public On-Demand download endpoint fails to verify playlist-level access controls, allowing unauthenticated users to download media files excluded from On-Demand-enabled playlists. Attackers can bypass the station operator's intended access restrictions by directly requesting media via the download endpoint using valid media identifiers, exposing private or restricted audio content.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
AzuraCast AzuraCast 0 ~ 0.23.8 -

II. Public POCs for CVE-2026-100853

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III. Intelligence Information for CVE-2026-100853

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Vendor Advisories for CVE-2026-100853 (1)

Other References for CVE-2026-100853 (1)

Same Patch Batch · AzuraCast · 2026-09-27 · 11 CVEs total

CVE-2026-100852 8.8 HIGH AzuraCast before 0.23.8 Command Injection via Streamer Username
CVE-2026-100856 8.8 HIGH AzuraCast before 0.23.6 Code Injection via Remote Relay Password
CVE-2026-100857 8.0 HIGH AzuraCast before 0.23.4 Remote Code Execution via Liquidsoap string interpolation
CVE-2026-100850 7.7 HIGH AzuraCast before 0.23.8 SSRF and Local File Read via Remote Playlist
CVE-2026-100851 7.6 HIGH AzuraCast before 0.23.8 Broken Access Control via GET /api/station/{id}/vue/profile
CVE-2026-100847 7.5 HIGH AzuraCast before 0.23.8 DQL Injection via sortOrder
CVE-2026-100849 7.1 HIGH AzuraCast before 0.23.8 SSRF Filter Bypass via Hostname and Private IPs
CVE-2026-100848 7.1 HIGH AzuraCast before 0.23.8 Server-Side Request Forgery via Remote Relay URL
CVE-2026-100855 6.5 MEDIUM AzuraCast before 0.23.6 Missing Permission Check via /play
CVE-2026-100854 6.3 MEDIUM AzuraCast before 0.23.6 Metadata Injection via Liquidsoap API

IV. Related Vulnerabilities

Same product: AzuraCast
Same vendor: AzuraCast
Same weakness: CWE-862

V. Comments for CVE-2026-100853

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