CVE-2026-85696: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in OpenTalker SadTalker
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 v4.0
Score 9.3critical
Affected software
OpenTalker
SadTalker
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-85696 describes an OS command injection vulnerability in OpenTalker's SadTalker software. The flaw exists in the video muxing process where uploaded audio filenames are embedded into ffmpeg command lines without adequate sanitization or escaping. Attackers can exploit this by uploading audio files with shell metacharacters in their filenames, which break out of the intended quoted arguments and allow execution of arbitrary system commands during video generation.
Potential Impact
Successful exploitation allows unauthenticated attackers to execute arbitrary system commands on the host running SadTalker, potentially leading to full system compromise. The vulnerability is remotely exploitable without user interaction and requires no privileges, making it highly critical.
Mitigation Recommendations
No vendor advisory or patch information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted audio filenames or sanitize inputs to prevent shell metacharacter injection in ffmpeg commands.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-04T13:51:52.250Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9adb49acd9273b49bef600
Added to database: 09/04/2026, 14:52:57 UTC
Last enriched: 09/15/2026, 00:00:52 UTC
Last updated: 10/19/2026, 18:48:24 UTC
Views: 105
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