GHSA-RJG7-R26H-CFP2 Koel: Full-read SSRF via podcast enclosure URL: isPublicHost() filter_var guard does not reject NAT64 (64:ff9b::/96) or 6to4 (2002::/16) IPv6-transition wrappers of internal IPv4

Summary Koel's outbound-URL guard App\Helpers\Network::isPublicHost classifies an IP as "public" using PHP's filtervar$ip, FILTERVALIDATEIP, FILTERFLAGNOPRIVRANGE | FILTERFLAGNORESRANGE. That flag set does not recognise IPv6 transition-address forms that embed a private/loopback/link-local IPv4:...

GHSA-JR4P-4XJH-FWVW Koel: Server-Side Request Forgery (SSRF) in radio station creation due to missing validation bail

Summary Koel v9.5.0 contains a Server-Side Request Forgery SSRF vulnerability in the radio station creation endpoint POST /api/radio/stations. The url field validation rules are declared without the bail keyword, so the HasAudioContentType rule — which issues HTTP requests to the supplied URL —...

CVE-2026-47260 Koel Vulnerable to SSRF via Podcast Episode Enclosure URLs

Koel is a free, open-source music streaming solution. Prior to version 9.3.5, Koel validates the podcast feed URL via the SafeUrl rule DNS resolution + public IP check, but the individual episode values extracted from the RSS XML are stored directly into the database without any SSRF validation...

CVE-2026-47260 Koel Vulnerable to SSRF via Podcast Episode Enclosure URLs

Koel is a free, open-source music streaming solution. Prior to version 9.3.5, Koel validates the podcast feed URL via the SafeUrl rule DNS resolution + public IP check, but the individual episode values extracted from the RSS XML are stored directly into the database without any SSRF validation...

CVE-2021-33563

Koel before 5.1.4 lacks login throttling, lacks a password strength policy, and shows whether a failed login attempt had a valid username. This might make brute-force attacks easier...