{"apiVersion":"1.0","identifier":"CVE-2026-54494","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","publishedAt":"2026-08-19T21:16:57","lastModifiedAt":"2026-08-25T15:16:32","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54494","cvssScore":5.3,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.00272,"riskScore":0.54,"affectedProduct":"Koel","affectedVersions":"<9.7.1","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-54494","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-54494","en":"https://www.redsauce.net/en/cves/CVE-2026-54494","fr":"https://www.redsauce.net/fr/cves/CVE-2026-54494","pt":"https://www.redsauce.net/pt/cves/CVE-2026-54494","de":"https://www.redsauce.net/de/cves/CVE-2026-54494","sk":"https://www.redsauce.net/sk/cves/CVE-2026-54494","el":"https://www.redsauce.net/el/cves/CVE-2026-54494"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-54494"}}