{"id":"CVE-2026-107660","published":"2026-10-08T16:17:04.893","lastModified":"2026-10-14T23:56:12.057","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.","cvssScore":4.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","cwes":["CWE-297"],"vendors":["ffmpeg"],"products":["ffmpeg"],"references":[{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/0cd2a70eacd510c2efed48b9fc177c7cb2bc549f","tags":["Patch"]},{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/57a2e704b4a6eda5d061b45aacde6b19c026bfc0","tags":["Patch"]},{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/d377212904a19fc740d721cbda0ba58fa3805a29","tags":["Patch"]},{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24383","tags":["Issue Tracking","Patch"]},{"url":"https://ffmpeg.org/","tags":["Product"]},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.1/libavformat/tls_mbedtls.c#L676-L681","tags":["Product"]},{"url":"https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-and-9-x-before-9.0.2-mbedtls-hostname-verification-bypass-for-ip-hosts","tags":["Third Party Advisory"]}],"exploitRefs":[{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.1/libavformat/tls_mbedtls.c#L676-L681","tags":["Product"]}],"hasPoc":true,"ai":null}