Medium · published October 8, 2026
FFmpeg through 9.0.2 contains a missing host key verification vulnerability in the libssh-based sftp protocol handler that allows network attackers to impersonate SFTP servers. Attackers performing man-in-the-middle, DNS, or ARP spoofing can capture passwords supplied in sftp URLs, serve forged media, or receive uploaded output.
| Product | Versions | Fixed in |
|---|---|---|
| ffmpeg/ffmpeg | ≤ 9.0.2 | — |