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cve-2026-54492
Koel: Authenticated Blind SSRF via Subsonic Podcast Channel Creation
CVE-2026-54492 - Koel: Authenticated Blind SSRF via Subsonic Podcast Channel Creation
CVE ID : CVE-2026-54492 Published : Aug. 19, 2026, 8:44 p. m. • 24 minutes ago Description : Koel is a free, open-source music streaming solution. Prior to 9. 7. 0, the Subsonic-compatible createPodcastChannel. view route accepts an authenticated user's private URL because app/Http/Requests/Subsonic/CreatePodcastChannelRequest. php does not apply the SafeUrl validation used by the regular podcast API. app/Http/Controllers/Subsonic/CreatePodcastChannelController. php passes the URL to app/Services/Podcast/PodcastService. php, where PodcastService::addPodcast() and createParser() invoke Poddle::fromUrl() during channel creation, causing immediate server-side requests to loopback, Docker bridge, or RFC1918 HTTP destinations. The confirmed impact is blind internal request execution because generic response-body exfiltration was not demonstrated through this route.
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