CVE-2026-52877 Streambert : Insecure Protocol Execution in open-external IPC Handler
A compromised renderer can execute arbitrary code or read local files by passing malicious URIs to the external protocol handler.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-52877?
CVE-2026-52877 is a high-severity code injection vulnerability in truelockmc streambert, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, 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-external IPC handler in src/ipc/downloads.js passes a renderer-supplied url directly to Electron's shell.openExternal without validating its protocol. A compromised renderer can submit file: URIs or operating-system-specific custom schemes, causing the host to open local files, access remote resources through registered handlers, or launch scripts and applications supported by those handlers. This issue is fixed in version 2.6.0.
Which versions are affected by CVE-2026-52877?
How do I fix CVE-2026-52877?
No fix has been published for CVE-2026-52877 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-52877 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-52877 exists.
Sources
Also known as GHSA-j2vw-gg3g-wwqr.