Vulnerability Description
Koel is a free, open-source music streaming solution. Prior to 9.7.1, App\Helpers\Network::isPublicHost() uses filter_var() with FILTER_FLAG_NO_PRIV_RANGE and FILTER_FLAG_NO_RES_RANGE, which treats NAT64 64:ff9b::/96 and 6to4 2002::/16 wrappers of private, loopback, or link-local IPv4 addresses as public. An authenticated user can place such an address in a podcast RSS <enclosure url> and reach app/Values/Podcast/EpisodePlayable.php through EpisodePlayable::createForEpisode(), where isSafeUrl() accepts the target and Http::sink($file)->get($url) fetches it. On a host with NAT64 or 6to4 routing, Koel can request internal services or cloud metadata and return the response body to the user. This issue is fixed in version 9.7.1
Related Weaknesses (CWE)
References
- https://github.com/koel/koel/commit/5f6ce2cefd08f437a269236b677ad971517ccbb6
- https://github.com/koel/koel/pull/2549
- https://github.com/koel/koel/releases/tag/v9.7.1
- https://github.com/koel/koel/security/advisories/GHSA-rjg7-r26h-cfp2
FAQ
What is CVE-2026-54494?
CVE-2026-54494 is a documented vulnerability. Koel is a free, open-source music streaming solution. Prior to 9.7.1, App\Helpers\Network::isPublicHost() uses filter_var() with FILTER_FLAG_NO_PRIV_RANGE and FILTER_FLAG_NO_RES_RANGE, which treats NA...
How severe is CVE-2026-54494?
CVSS scoring is not yet available for CVE-2026-54494. Check NVD for updates.
Is there a patch for CVE-2026-54494?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.