{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54494","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-15T18:01:15.510Z","datePublished":"2026-08-19T20:46:01.824Z","dateUpdated":"2026-08-19T20:46:01.824Z"},"containers":{"cna":{"title":"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","problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"}}],"references":[{"name":"https://github.com/koel/koel/security/advisories/GHSA-rjg7-r26h-cfp2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/koel/koel/security/advisories/GHSA-rjg7-r26h-cfp2"},{"name":"https://github.com/koel/koel/pull/2549","tags":["x_refsource_MISC"],"url":"https://github.com/koel/koel/pull/2549"},{"name":"https://github.com/koel/koel/commit/5f6ce2cefd08f437a269236b677ad971517ccbb6","tags":["x_refsource_MISC"],"url":"https://github.com/koel/koel/commit/5f6ce2cefd08f437a269236b677ad971517ccbb6"},{"name":"https://github.com/koel/koel/releases/tag/v9.7.1","tags":["x_refsource_MISC"],"url":"https://github.com/koel/koel/releases/tag/v9.7.1"}],"affected":[{"vendor":"koel","product":"koel","versions":[{"version":"< 9.7.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-19T20:46:01.824Z"},"descriptions":[{"lang":"en","value":"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"}],"source":{"advisory":"GHSA-rjg7-r26h-cfp2","discovery":"UNKNOWN"}}}}