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Vulnerability record · CVE-2026-85696 · published 4 September 2026

CVE-2026-85696: OS command injection vulnerability

SadTalker contains an OS command injection vulnerability in the video muxing process where uploaded audio filenames are interpolated into ffmpeg commands without proper escaping. Attackers can upload audio files with shell metacharacters in the filename to break out of quoted arguments and execute arbitrary system commands when video generation occurs.

9.3 CVSS 4.0 Critical EPSS 2.6% · top 15.4% CWE-78 · OS command injection Deferred
9.3CVSS 4.0 base score
2.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
10 Sep 2026Last modified by NVD

Description

SadTalker contains an OS command injection vulnerability in the video muxing process where uploaded audio filenames are interpolated into ffmpeg commands without proper escaping. Attackers can upload audio files with shell metacharacters in the filename to break out of quoted arguments and execute arbitrary system commands when video generation occurs.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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:

References

LinkTags
https://github.com/OpenTalker/SadTalker
https://github.com/OpenTalker/SadTalker/blob/v0.0.2/src/utils/videoio.py
https://github.com/OpenTalker/SadTalker/issues/1043
https://www.vulncheck.com/advisories/sadtalker-os-command-injection-via-audio-filename

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Source: NIST National Vulnerability Database (record CVE-2026-85696), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.