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CVE-2026-100848: AzuraCast

Severity

7.1 (HIGH)

Vendor

AZURACAST

Affected versions

0 through before 0.23.8

Fixed version

0.23.8

Patch status

Patched

Published

2026-09-27T02:17:23.583

Modified

2026-09-27T02:17:23.583

Why it matters

This matters because the affected product may allow code execution. Prioritize systems that are internet-facing or have privileged access to other infrastructure.

Recommended admin actions

• Review and patch based on exposure, asset criticality, and business impact.
• Compare installed versions against the affected version range in the advisory.
• Treat internet-facing systems as higher priority.
• Review logs for suspicious activity related to the affected application or component.
• Apply compensating controls or temporarily remove exposure until a vendor fix is available.

Technical 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:/ 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.

View the official NVD record for CVE-2026-100848

CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.