CVE-2026-52876 Streambert: Arbitrary File Execution via VLC/mpv Launcher Fallback
A compromised renderer can execute arbitrary local files via shell.openPath fallback, enabling sandbox escape and code execution with user privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-52876?
CVE-2026-52876 is a high-severity command injection vulnerability in truelockmc streambert, published on 18 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Streambert is a cross-platform Electron Desktop App to stream and download video content. Prior to version 2.6.0, the open-path-at-time IPC handler in src/ipc/player.js accepts a renderer-controlled filePath without validating its type or location. If the mpv or VLC launch attempts are skipped or fail, the handler passes filePath to Electron's shell.openPath. A compromised renderer can provide the path of a local executable, script, shortcut, or other file with an executing default handler, causing the operating system to launch it with the privileges of the StreamBERT process and enabling escape from the renderer sandbox. This issue is fixed in version 2.6.0.
Which versions are affected by CVE-2026-52876?
How do I fix CVE-2026-52876?
No fix has been published for CVE-2026-52876 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-52876 being exploited?
There is no known exploitation of CVE-2026-52876 in the wild and no public exploit code.
Sources
Also known as GHSA-85vf-2qwc-qpm4.