{"id":"CVE-2026-100848","state":"PUBLISHED","title":"AzuraCast before 0.23.8 Server-Side Request Forgery via Remote Relay URL","description":"AzuraCast (Composer package azuracast/azuracast) before 0.23.8 validates a station's \"Remote Relay\" URL only for URL syntax and an http/https scheme (Utilities\\Urls::parseUserUrl, used by StationRemote::getUrlAsUri) and performs no host or IP address restriction. A user holding only the station-scoped RemoteRelays permission can therefore set a Remote Relay URL pointing at loopback, private-network, or cloud-metadata addresses (e.g. http://127.0.0.1:<port>/ or http://169.254.169.254/latest/meta-data/), and AzuraCast's periodic background Now Playing sync (AbstractRemote::getNowPlayingAsync) will automatically and repeatedly issue HTTP requests to that address, resulting in server-side request forgery against internal resources. This affects the main branch as of commit bcf8754eef3a268ad82c3db4d81f7920c3c28b56 (2026-07-31); no patched version is available at the time of the advisory.","publishedAt":"2026-09-27T01:28:42.329Z","updatedAt":"2026-09-28T16:38:16.249Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["AzuraCast AzuraCast"],"affected":[{"vendor":"AzuraCast","product":"AzuraCast","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.23.8","versionType":"semver"},{"version":"0.23.8","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/AzuraCast/AzuraCast/security/advisories/GHSA-4h6m-rrxm-7w3m","https://www.vulncheck.com/advisories/azuracast-before-0.23.8-server-side-request-forgery-via-remote-relay-url"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/100xxx/CVE-2026-100848.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100848","state":"PUBLISHED","datePublished":"2026-09-27T01:28:42.329Z","dateUpdated":"2026-09-28T16:38:16.249Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-27T00:18:40.972Z"},"containers":{"cna":{"title":"AzuraCast before 0.23.8 Server-Side Request Forgery via Remote Relay URL","descriptions":[{"lang":"en","value":"AzuraCast (Composer package azuracast/azuracast) before 0.23.8 validates a station's \"Remote Relay\" URL only for URL syntax and an http/https scheme (Utilities\\Urls::parseUserUrl, used by StationRemote::getUrlAsUri) and performs no host or IP address restriction. A user holding only the station-scoped RemoteRelays permission can therefore set a Remote Relay URL pointing at loopback, private-network, or cloud-metadata addresses (e.g. http://127.0.0.1:<port>/ or http://169.254.169.254/latest/meta-data/), and AzuraCast's periodic background Now Playing sync (AbstractRemote::getNowPlayingAsync) will automatically and repeatedly issue HTTP requests to that address, resulting in server-side request forgery against internal resources. This affects the main branch as of commit bcf8754eef3a268ad82c3db4d81f7920c3c28b56 (2026-07-31); no patched version is available at the time of the advisory."}],"affected":[{"vendor":"AzuraCast","product":"AzuraCast","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.23.8","versionType":"semver"},{"version":"0.23.8","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/AzuraCast/AzuraCast/security/advisories/GHSA-4h6m-rrxm-7w3m","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-4h6m-rrxm-7w3m)"},{"url":"https://www.vulncheck.com/advisories/azuracast-before-0.23.8-server-side-request-forgery-via-remote-relay-url","name":"VulnCheck Advisory: AzuraCast before 0.23.8 Server-Side Request Forgery via Remote Relay URL","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-27T01:28:42.329Z"},"datePublic":"2026-08-07T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:azuracast:azuracast:*:*:*:*:*:*:*:*","versionEndIncluding":"0.23.8"}]}]}],"credits":[{"lang":"en","value":"senti-man","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/AzuraCast/AzuraCast/security/advisories/GHSA-4h6m-rrxm-7w3m","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-28T16:25:12.283401Z","id":"CVE-2026-100848","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-28T16:38:16.249Z"}}]}}}