RCE in Opentalker Sadtalker
CVE-2026-85696
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (85.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.026 · change: +0.011
Affected products
Weakness classification (CWE)
References
- github.com/OpenTalker/SadTalker (product)
- github.com/OpenTalker/SadTalker/blob/v0.0.2/src/utils/videoio.py (technical-description)
- github.com/OpenTalker/SadTalker/issues/1043 (issue-tracking)
- www.vulncheck.com/advisories/sadtalker-os-command-injection-via-audio-filename (third-party-advisory)
Frequently asked questions
- What is CVE-2026-85696?
- CVE-2026-85696 is a critical-severity vulnerability in Opentalker Sadtalker, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-09-04.
- How severe is CVE-2026-85696?
- Critical severity. CVSS v3 base score is 9.8 out of 10.