CVE-2026-54493

Koel is a free, open-source music streaming solution. Prior to 9.7.0, the Subsonic-compatible createInternetRadioStation.view and updateInternetRadioStation.view routes accept an authenticated user's streamUrl without the SafeUrl and HasAudioContentType checks used by the regular radio API. app/Http/Requests/Subsonic/CreateInternetRadioStationRequest.php and app/Http/Requests/Subsonic/UpdateInternetRadioStationRequest.php pass the stored URL through app/Services/RadioService.php to app/Services/Radio/RadioStreamProxy.php, where RadioStreamProxy::openStream() calls fopen($url, 'r', false, $context). Streaming /radio/stream/{id} returns the upstream response body, allowing access to loopback, RFC1918, Docker bridge, metadata, or other internal HTTP services reachable from the Koel server. This issue is fixed in version 9.7.0.

• CWE-918

• https://github.com/koel/koel/commit/1331f335342b405e60ffabdd60f1f398508f996f
• https://github.com/koel/koel/pull/2545
• https://github.com/koel/koel/releases/tag/v9.7.0
• https://github.com/koel/koel/security/advisories/GHSA-6p96-cfg5-4vhp
• https://github.com/koel/koel/security/advisories/GHSA-6p96-cfg5-4vhp

Published

Aug 19, 2026

Last Modified

Sep 9, 2026

Status

Deferred

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