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CVE-2026-121431— AzuraCast before 0.24.0 SSRF Filter Bypass via Webhook Connectors

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.

0.24.0 之前的 AzuraCast 版本存在服务端请求伪造（SSRF）漏洞。拥有 WebHooks 权限的电台用户可以通过 Mastodon、Telegram、GroupMe 和 RadioReg 连接器绕过 UserUrlFilter 防护机制。攻击者可将 、 或 参数设置为内网地址，从而触发 webhook 测试端点，使其访问回环地址、私有网络或云元数据服务。

CVSS 5.3 · Medium
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I. Basic Information for CVE-2026-121431

Vulnerability Information
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Vulnerability Title
AzuraCast before 0.24.0 SSRF Filter Bypass via Webhook Connectors
Source: CVE Program / CVE List V5
Vulnerability Description
AzuraCast before 0.24.0 contains a server-side request forgery vulnerability that allows station users with WebHooks permission to bypass the UserUrlFilter guard via the Mastodon, Telegram, GroupMe, and RadioReg connectors. Attackers can set instance_url, api, or webhookurl to internal addresses and trigger the webhook test endpoint to reach loopback, private-network, or cloud-metadata services.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
AzuraCast AzuraCast 0 ~ 0.24.0 -

II. Public POCs for CVE-2026-121431

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III. Intelligence Information for CVE-2026-121431

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Other References for CVE-2026-121431 (2)

Same Patch Batch · AzuraCast · 2026-11-03 · 7 CVEs total

CVE-2026-121428 8.8 HIGH AzuraCast through 0.23.8 RCE via Supervisor Configuration Injection in Timezone
CVE-2026-121429 8.8 HIGH AzuraCast through 0.23.8 Command Injection via StereoTool Liquidsoap pipe()
CVE-2026-121427 7.5 HIGH AzuraCast through 0.23.8 Config Injection via frontend_config.custom_config
CVE-2026-121430 5.4 MEDIUM AzuraCast before 0.24.0 Missing Authorization via Station Waveform Endpoints
CVE-2026-121433 5.4 MEDIUM AzuraCast before 0.24.0 Stored CSV Formula Injection via Bulk Media Export
CVE-2026-121432 3.5 LOW AzuraCast before 0.24.0 CRLF Injection via Mount display_name in PLS Playlist

IV. Related Vulnerabilities

Same product: AzuraCast
Same vendor: AzuraCast
Same weakness: CWE-918