What’s Vulnerable › Vulnerabilities

CVE-2026-54493: Koel: Authenticated Full-Read SSRF via Subsonic Internet Radio Stations

• Severity: high (CVSS 7.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-19 · updated 2026-10-26
• Weakness: CWE-918

Description

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.

Affected products

• koel: before 9.7.0

References

• 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

Get alerted when CVE-2026-54493 or the next vulnerability affects your stack