{"id":"CVE-2026-107449","state":"PUBLISHED","title":"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 Supp","description":"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.","publishedAt":"2026-10-08T04:28:17.619Z","updatedAt":"2026-10-08T17:35:00.370Z","severity":{"score":3.4,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N","source":"mitre"},"assigner":"mitre","products":["linuxserver Heimdall"],"affected":[{"vendor":"linuxserver","product":"Heimdall","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.8.3","versionType":"semver"}],"modules":["Enhanced app test/livestats (test_config","get_stats)"],"programFiles":["app/SupportedApps.php","app/Http/Controllers/ItemController.php"],"programRoutines":[{"name":"SupportedApps::execute"}],"repo":"https://github.com/linuxserver/Heimdall"}],"references":["https://github.com/kashishtopi/heimdall-unauth-ssrf","https://github.com/linuxserver/Heimdall/blob/9ad5864a80d7025db1e6eab8eb2981c165b0ddff/app/SupportedApps.php"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/107xxx/CVE-2026-107449.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-107449","state":"PUBLISHED","datePublished":"2026-10-08T04:28:17.619Z","dateUpdated":"2026-10-08T17:35:00.370Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-10-08T04:28:16.780Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"linuxserver","product":"Heimdall","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.8.3","versionType":"semver"}],"modules":["Enhanced app test/livestats (test_config","get_stats)"],"programFiles":["app/SupportedApps.php","app/Http/Controllers/ItemController.php"],"programRoutines":[{"name":"SupportedApps::execute"}],"repo":"https://github.com/linuxserver/Heimdall"}],"references":[{"url":"https://github.com/kashishtopi/heimdall-unauth-ssrf","tags":["exploit","technical-description"]},{"url":"https://github.com/linuxserver/Heimdall/blob/9ad5864a80d7025db1e6eab8eb2981c165b0ddff/app/SupportedApps.php","tags":["product"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.4,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","description":"CWE-918 Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-10-08T04:28:17.619Z"},"x_generator":{"engine":"CVE-Request-form 0.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-08T17:34:52.742208Z","id":"CVE-2026-107449","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":"2026-10-08T17:35:00.370Z"}}]}}}