OS Command Injection in AVideo - CVE-2026-45578
Published: November 11, 2026
Vulnerability identifier: #VU165916
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-45578
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary operating system commands with the privileges of the web-server runtime user.
The vulnerability exists due to improper shell argument escaping in AVideo's plugin/Live/on_publish.php when the enabled Live and YPTSocket plugins construct execAsync() commands on non-Windows systems. A remote user can use a streaming-enabled account to save a stream key such as evilkey';id>/tmp/pwn;# and POST it to the endpoint to inject shell commands through the generated m3u8 URL.
Affected software
AVideo
How to mitigate CVE-2026-45578
Install security update from vendor's website.
AVideo - update to 29.1.0