{"id":"CVE-2026-107660","revision":"f57dd40b7c8645838a1419b247cbb5bc","records":[{"revision":"f57dd40b7c8645838a1419b247cbb5bc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107660","aliases":[],"title":"FFmpeg before 8.1.3 and 9.x before 9.0.2 mbedTLS Hostname Verification Bypass for IP Hosts","description":"FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an improper certificate validation vulnerability in tls_open() of libavformat/tls_mbedtls.c, which skips hostname checks for IP-address hosts. Network attackers can intercept https, rtmps, or tls connections to IP-literal URLs with any trusted CA-issued certificate to read and tamper with streams.","state":0,"publishedAt":"2026-10-08T15:28:40.75+00:00","modifiedAt":"2026-10-08T17:25:50.45+00:00","affected":[{"ecosystem":"Vendor product","name":"FFmpeg","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"FFmpeg\",\n                    \"product\": \"FFmpeg\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"8.1.3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"version\": \"9.0\",\n                            \"lessThan\": \"9.0.2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/ffmpeg/ffmpeg\",\n                    \"repo\": \"https://code.ffmpeg.org/FFmpeg/FFmpeg\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.3,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","score":4.8,"severity":"MEDIUM"}],"references":["https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24383","https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/57a2e704b4a6eda5d061b45aacde6b19c026bfc0","https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/d377212904a19fc740d721cbda0ba58fa3805a29","https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/0cd2a70eacd510c2efed48b9fc177c7cb2bc549f","https://github.com/FFmpeg/FFmpeg/blob/n9.0.1/libavformat/tls_mbedtls.c#L676-L681","https://ffmpeg.org/","https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-and-9-x-before-9.0.2-mbedtls-hostname-verification-bypass-for-ip-hosts"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107660","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107660","identifiers":["CVE-2026-107660"]},"retained":false,"historicalAffected":[]}],"coverage":[]}