{"id":"CVE-2026-100391","aliases":["EUVD-2026-87328","GHSA-5j62-5j8p-jpqh"],"status":"published","title":"MediaFlow Proxy through 2.4.9 Server-Side Request Forgery via Incomplete Validation","description":"MediaFlow Proxy through 2.4.9 contains a server-side request forgery vulnerability in the /proxy routes due to missing and incomplete destination validation in the d query parameter. Remote attackers can supply arbitrary internal URLs including loopback and cloud metadata endpoints to read full responses from the proxy server.","severity":{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00309,"percentile":0.24018,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2026-09-25T20:13:12Z","modified":"2026-10-28T02:30:38Z","products":[{"vendor":"mhdzumair","product":"mediaflow-proxy"}],"references":[{"url":"https://github.com/mhdzumair/mediaflow-proxy/commit/99f4af1153d4766420a098a232183cba1efdc560","tags":["patch","fix"]},{"url":"https://github.com/mhdzumair/mediaflow-proxy/blob/2.4.9/mediaflow_proxy/routes/proxy.py#L532-L569","tags":["technical-description","article"]},{"url":"https://github.com/mhdzumair/mediaflow-proxy","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/mediaflow-proxy-through-2.4.9-server-side-request-forgery-via-incomplete-validation","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100391","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5j62-5j8p-jpqh"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100391.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-100391","title":"MediaFlow Proxy through 2.4.9 Server-Side Request Forgery via Incomplete Validation","description":"MediaFlow Proxy through 2.4.9 contains a server-side request forgery vulnerability in the /proxy routes due to missing and incomplete destination validation in the d query parameter. Remote attackers can supply arbitrary internal URLs including loopback and cloud metadata endpoints to read full responses from the proxy server.","status":"published","published":"2026-09-25T20:13:12.968Z","modified":"2026-10-05T14:55:05.292Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:20:06.562031Z"}],"euvd":[{"id":"EUVD-2026-87328","description":"MediaFlow Proxy through 2.4.9 contains a server-side request forgery vulnerability in the /proxy routes due to missing and incomplete destination validation in the d query parameter. Remote attackers can supply arbitrary internal URLs including loopback and cloud metadata endpoints to read full responses from the proxy server.","status":"published","published":"2026-09-25T20:13:12Z","modified":"2026-10-05T14:55:05Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:27:39.819382Z"}],"ghsa":[{"id":"GHSA-5j62-5j8p-jpqh","title":"MediaFlow Proxy through 2.4.9 contains a server-side request forgery vulnerability in the /proxy...","description":"MediaFlow Proxy through 2.4.9 contains a server-side request forgery vulnerability in the /proxy routes due to missing and incomplete destination validation in the d query parameter. Remote attackers can supply arbitrary internal URLs including loopback and cloud metadata endpoints to read full responses from the proxy server.","status":"published","published":"2026-09-25T21:33:04Z","modified":"2026-09-25T21:33:11Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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","level":"high"},{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:12:27.845198Z"}],"nvd":[{"id":"CVE-2026-100391","description":"MediaFlow Proxy through 2.4.9 contains a server-side request forgery vulnerability in the /proxy routes due to missing and incomplete destination validation in the d query parameter. Remote attackers can supply arbitrary internal URLs including loopback and cloud metadata endpoints to read full responses from the proxy server.","status":"published","published":"2026-09-25T21:17:22.8Z","modified":"2026-10-05T15:17:08.547Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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","level":"high","assessor":"secondary"},{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:12:51.721923Z"}],"osv":[{"id":"CVE-2026-100391","title":"MediaFlow Proxy through 2.4.9 Server-Side Request Forgery via Incomplete Validation","description":"MediaFlow Proxy through 2.4.9 contains a server-side request forgery vulnerability in the /proxy routes due to missing and incomplete destination validation in the d query parameter. Remote attackers can supply arbitrary internal URLs including loopback and cloud metadata endpoints to read full responses from the proxy server.","status":"published","published":"2026-09-25T20:13:12.968Z","modified":"2026-10-28T02:30:38.272961799Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:44:53.490346Z"}]}}