CVE-2026-47260
HighCVSS 7.7Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
Koel is a free, open-source music streaming solution. In versions prior to 9.3.5, Koel did not properly validate podcast episode URLs, allowing for SSRF attacks against internal services.
Risk Assessment
The organization may be exposed to SSRF attacks that could lead to unauthorized access to internal resources and data.
Recommendation
It is recommended to upgrade to version 9.3.5 or later to mitigate this vulnerability.
Other vulnerabilities in Koel
See all- CVE-2026-54494Medium
Koel before version 9.7.1 incorrectly treats NAT64 and 6to4 addresses as public, allowing an authenticated user to place such an address in a podcast RSS and trigger requests to internal services or cloud metadata. The response body is returned to the user.
- CVE-2026-54493High
In Koel before 9.7.0, the Subsonic-compatible createInternetRadioStation.view and updateInternetRadioStation.view routes accept an authenticated user's streamUrl without SafeUrl and HasAudioContentType checks. The stored URL is passed to RadioStreamProxy::openStream(), which calls fopen($url, 'r', false, $context). This allows access to internal HTTP services such as loopback, RFC1918, Docker bridge, or metadata.
- CVE-2026-54492Medium
Koel before version 9.7.0 in the Subsonic createPodcastChannel.view route does not apply SafeUrl validation, allowing an authenticated user to provide a private URL. This causes immediate server-side requests to loopback, Docker bridge, or RFC1918 destinations.
- CVE-2026-54491High
In Koel before 9.7.1, outbound podcast and radio fetch paths perform a point-in-time isPublicHost() or isSafeUrl() check without pinning the validated address, and most paths lack redirect-hop validation. This allows following an attacker-controlled redirect to an internal address or connecting after DNS rebinding. These paths are reachable through podcast and radio APIs, allowing an authenticated user to access internal services or cloud metadata.
- CVE-2026-50552Medium
Koel is a free, open-source music streaming solution. Prior to version 9.7.1, there is a Server-Side Request Forgery (SSRF) vulnerability in the radio station creation endpoint, allowing the server to be coerced into making requests to arbitrary internal hosts.
Original NVD description (English source)
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 <enclosure url="..."> values extracted from the RSS XML are stored directly into the database without any SSRF validation. When a user plays an episode, the server downloads the full HTTP response from the unvalidated enclosure URL via Http::sink()->get() and streams it back to the user, enabling full-read SSRF against internal services. This issue has been patched in version 9.3.5.