{"id":"CVE-2026-107449","details":"linuxserver Heimdall through 2.8.3 applies its SafeUrlFetcher SSRF protection mechanism only to ItemController; the enhanced-application test and live-stats requests occur via SupportedApps::execute(), a GuzzleHttp client that lacks IP address restrictions. In some realistic installations, the POST /test_config (and GET /get_stats) endpoints are accessible through CSRF, and thus an unauthenticated attacker can force the server to send requests to arbitrary internal hosts and ports (including 169.254.169.254) and read a status/port oracle in addition to partial response data.","modified":"2026-10-10T02:31:04.249385557Z","published":"2026-10-08T04:28:17.619Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107449.json","cna_assigner":"mitre","cwe_ids":["CWE-918"]},"references":[{"type":"WEB","url":"https://github.com/linuxserver/Heimdall/blob/9ad5864a80d7025db1e6eab8eb2981c165b0ddff/app/SupportedApps.php"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107449.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107449"},{"type":"PACKAGE","url":"https://github.com/linuxserver/Heimdall"},{"type":"EVIDENCE","url":"https://github.com/kashishtopi/heimdall-unauth-ssrf"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/linuxserver/heimdall","events":[{"introduced":"0"},{"fixed":"a8842c31fe9f2a205919ace9993c8c30fa61d6d0"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"2.8.3"},{"fixed":"2.8.3"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v2.8.2","v2.8.1","v2.8.0","v2.7.6","v2.7.5","v2.7.4","v2.7.3","v2.7.2","v2.7.1","v2.7.0","v2.6.3","v2.6.2","v2.6.1","v2.6.0","V2.5.8","v2.5.7","v2.5.6","v2.5.5","v2.5.4","v2.5.3","v2.5.2","v2.5.1","v2.5.0","v2.4.15","v2.4.14","v2.4.13","v2.4.12","v2.4.11","v2.4.10","v2.4.8","v2.4.9","v2.4.7b","v2.4.7","v2.4.6","V2.4.5","v2.4.4","v2.4.3","v2.4.2","v2.4.1","v2.4.0","v2.3.2","v2.3.1","2.2.2","2.2.1","2.2.0","2.1.13","2.1.12","2.1.11","2.1.10","2.1.9","2.1.8","2.1.7","2.1.6","2.1.5","2.1.4","2.1.3","2.1.2","2.1.1","2.1.0","2.0.3","2.0.2","2.0.1","2.0.0","1.4.17","1.4.16","1.4.15","1.4.14","1.4.13","1.4.12","1.4.11","1.4.10","1.4.9","1.4.8","1.4.6","1.4.5","1.4.4","v1.4.3","v1.4.2","v1.4.1","v1.4.0","v1.3.4","v1.3.3","v1.3.2","v1.3.1","v1.3.0","v1.2.1","v1.2.0","v1.1.3","v1.1.2","v1.1.1","v1.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107449.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N"}]}