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AzuraCast before 0.23.8 Server-Side Request Forgery via Remote Relay URL

Priority MEDIUM 64CWE-918Published · Updated

Key facts

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

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

Summary

AzuraCast (Composer package azuracast/azuracast) before 0.23.8 validates a station's "Remote Relay" URL only for URL syntax and an http/https scheme (Utilities\Urls::parseUserUrl, used by StationRemote::getUrlAsUri) and performs no host or IP address restriction. A user holding only the station-scoped RemoteRelays permission can therefore set a Remote Relay URL pointing at loopback, private-network, or cloud-metadata addresses (e.g. http://127.0.0.1:<port>/ or http://169.254.169.254/latest/meta-data/), and AzuraCast's periodic background Now Playing sync (AbstractRemote::getNowPlayingAsync) will automatically and repeatedly issue HTTP requests to that address, resulting in server-side request forgery against internal resources. This affects the main branch as of commit bcf8754eef3a268ad82c3db4d81f7920c3c28b56 (2026-07-31); no patched version is available at the time of the advisory.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Fix Fixed AzuraCast (AzuraCast): 0.23.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AzuraCastAzuraCastbefore 0.23.80.23.8Patch availableCNA
  • AzuraCast VendorAzuraCast Affected before 0.23.8 Fixed in 0.23.8 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

  • Fix · CNA AzuraCast (AzuraCast) Fixed in 0.23.8

Fixed in the same release

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

  • Release ·

    AzuraCast 0.23.8

    7 records Highest priority Priority HIGH 4 HIGH, 3 MEDIUM

    Other records, highest priority first

    • TI-2026-64985 AzuraCast before 0.23.8 DQL Injection via sortOrderPriority HIGH 77
    • TI-2026-64990 AzuraCast before 0.23.8 Command Injection via Streamer UsernamePriority HIGH 73
    • TI-2026-64991 AzuraCast before 0.23.8 On-Demand Download Endpoint Authorization BypassPriority HIGH 69

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-100848
  2. 2026-10-03 Alias added: GHSA-xrr6-hwgm-2r77

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