{"id":"CVE-2026-54492","state":"PUBLISHED","title":"Koel: Authenticated Blind SSRF via Subsonic Podcast Channel Creation","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. This issue is fixed in version 9.7.0.","publishedAt":"2026-08-19T20:44:33.090Z","updatedAt":"2026-08-20T13:43:02.603Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["koel koel"],"affected":[{"vendor":"koel","product":"koel","versions":[{"version":"< 9.7.0","status":"affected"}]}],"references":["https://github.com/koel/koel/security/advisories/GHSA-w79m-f3jx-779v","https://github.com/koel/koel/pull/2545","https://github.com/koel/koel/commit/1331f335342b405e60ffabdd60f1f398508f996f","https://github.com/koel/koel/releases/tag/v9.7.0"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54492.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54492","state":"PUBLISHED","datePublished":"2026-08-19T20:44:33.090Z","dateUpdated":"2026-08-20T13:43:02.603Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T18:01:15.510Z"},"containers":{"cna":{"title":"Koel: Authenticated Blind SSRF via Subsonic Podcast Channel Creation","descriptions":[{"lang":"en","value":"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. This issue is fixed in version 9.7.0."}],"affected":[{"vendor":"koel","product":"koel","versions":[{"version":"< 9.7.0","status":"affected"}]}],"references":[{"url":"https://github.com/koel/koel/security/advisories/GHSA-w79m-f3jx-779v","name":"https://github.com/koel/koel/security/advisories/GHSA-w79m-f3jx-779v","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/koel/koel/pull/2545","name":"https://github.com/koel/koel/pull/2545","tags":["x_refsource_MISC"]},{"url":"https://github.com/koel/koel/commit/1331f335342b405e60ffabdd60f1f398508f996f","name":"https://github.com/koel/koel/commit/1331f335342b405e60ffabdd60f1f398508f996f","tags":["x_refsource_MISC"]},{"url":"https://github.com/koel/koel/releases/tag/v9.7.0","name":"https://github.com/koel/koel/releases/tag/v9.7.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-19T20:44:33.090Z"},"source":{"advisory":"GHSA-w79m-f3jx-779v","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/koel/koel/security/advisories/GHSA-w79m-f3jx-779v","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-20T13:41:13.920879Z","id":"CVE-2026-54492","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-20T13:43:02.603Z"}}]}}}