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Server-side request forgery in AzuraCast webhook connectors

Priority LOW 30CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

AzuraCast before 0.24.0 contains a server-side request forgery flaw, CWE-918, in its webhook connectors. A station user with WebHooks permission can bypass the UserUrlFilter guard through the Mastodon, Telegram, GroupMe, and RadioReg connectors. By setting instance_url, api, or webhookurl to internal addresses and triggering the webhook test endpoint, the attacker can reach loopback, private-network, or cloud-metadata services.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

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.

Why it matters now

EPSS 0.00275 20th percentileScored 2026-11-07
Fix Fixed AzuraCast (AzuraCast): 0.24.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
AzuraCastAzuraCastbefore 0.24.00.24.0Patch availableCNA
  • AzuraCast VendorAzuraCast Affected before 0.24.0 Fixed in 0.24.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:azuracast:azuracast:*:*:*:*:*:*:*:*——AzuraCast
  • cpe:2.3:a:azuracast:azuracast:*:*:*:*:*:*:*:* Versions — — ·AzuraCast

Remediation

Update AzuraCast to version 0.24.0, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA AzuraCast (AzuraCast) Fixed in 0.24.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    AzuraCast 0.24.0

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-84312 Missing authorization in AzuraCast station waveform endpointsPriority MEDIUM 57
    • TI-2026-84315 Stored CSV formula injection in AzuraCast bulk media exportPriority LOW 23
    • TI-2026-84314 AzuraCast CRLF Injection via Mount display_name in PLS PlaylistPriority LOW 22

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-121431
  2. 2026-11-03 Alias added: GHSA-8x7j-92r4-99vr
  3. 2026-11-05 Priority changed: MEDIUM → LOW

References

  • TI-2023-02372 Improper Restriction of Excessive Authentication Attempts in azuracast/azuracast CVSS 3.1CRITICAL 9.8
  • TI-2026-64985 AzuraCast before 0.23.8 DQL Injection via sortOrder CVSS 4.0HIGH 8.7
  • TI-2026-64994 AzuraCast before 0.23.6 Code Injection via Remote Relay Password CVSS 4.0HIGH 8.7
  • TI-2026-64990 AzuraCast before 0.23.8 Command Injection via Streamer Username CVSS 4.0HIGH 8.7
  • TI-2026-53672 AzuraCast through 0.23.8 Liquidsoap Configuration Write via Profile Edit Serialization Group Bypass CVSS 4.0HIGH 8.7
  • TI-2026-30886 AzuraCast: Password Reset Poisoning via Untrusted X-Forwarded-Host Header Leads to Account Takeover and 2FA Bypass CVSS 3.1HIGH 8.8
See all 23 →

Sources