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CVE-2026-107675— FFmpeg through 9.0.2 Missing SSH Host Key Verification in sftp Protocol

Quick assessment

Affected
FFmpeg FFmpeg
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FFmpeg 9.0.2 及之前版本中存在一个因缺少主机密钥验证而导致的漏洞，该漏洞位于基于 libssh 的 SFTP 协议处理程序中，允许网络攻击者伪装成 SFTP 服务器。实施中间人攻击（Man-in-the-Middle）、DNS 欺骗或 ARP 欺骗的攻击者可以截取通过 SFTP URL 提供的密码，提供伪造的媒体文件，或接收上传的输出内容。

CVSS 5.9 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
FFmpeg FFmpeg ≤ 9.0.2 affected
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I. Basic Information for CVE-2026-107675

Vulnerability Information
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Vulnerability Title
FFmpeg through 9.0.2 Missing SSH Host Key Verification in sftp Protocol
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
未进行实体认证的密钥交换
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FFmpeg FFmpeg 0 ~ 9.0.2 -

II. Public POCs for CVE-2026-107675

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III. Intelligence Information for CVE-2026-107675

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Patches & Fixes for CVE-2026-107675 (3)

Vendor Advisories for CVE-2026-107675 (1)

Vendor Pages for CVE-2026-107675 (1)

Same Patch Batch · FFmpeg · 2026-10-08 · 9 CVEs total

CVE-2026-107695 6.5 MEDIUM FFmpeg before 8.1.3 HLS Demuxer Infinite Loop via Self-Referencing Playlist
CVE-2026-107696 6.5 MEDIUM FFmpeg through 9.0.2 Infinite Loop via RTSP Redirect Handling in rtsp.c
CVE-2026-107698 5.4 MEDIUM FFmpeg before 7.1.4 and 8.0.2 SSRF via RTSP Redirect Handling
CVE-2026-107660 4.8 MEDIUM FFmpeg before 8.1.3 and 9.x before 9.0.2 mbedTLS Hostname Verification Bypass for IP Hosts
CVE-2026-107677 4.7 MEDIUM FFmpeg through 9.0.2 DASH Demuxer Infinite Loop via Empty SegmentTemplate Media
CVE-2026-107678 4.7 MEDIUM FFmpeg through 9.0.2 Stack Exhaustion via Recursive Free of pssh Boxes
CVE-2026-107697 4.3 MEDIUM FFmpeg before 8.1.3 HLS Demuxer Security Check Bypass via parse_playlist()
CVE-2026-107676 3.3 LOW FFmpeg through 9.0.2 Uninitialized Memory Disclosure via HDR10+ Metadata Serializer

IV. Related Vulnerabilities

Same product: FFmpeg
Same vendor: FFmpeg
Same weakness: CWE-322

V. Comments for CVE-2026-107675

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