Vulnerability · Published Aug 18, 2026 · Assigned by GitHub_M

CVE-2026-52876Streambert: Arbitrary File Execution via VLC/mpv Launcher Fallback

High 8.8

In plain English

A high-severity improper input validation in streambert from truelockmc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.2%top 90.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
truelockmc	streambert	< 2.6.0

Weakness: CWE-20, CWE-78 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

https://github.com/truelockmc/streambert/security/advisories/GHSA-85vf-2qwc-qpm4 x_refsource_CONFIRM
https://github.com/truelockmc/streambert/pull/149 x_refsource_MISC
https://github.com/truelockmc/streambert/commit/43566ed031183b046675761c9813c5379b619269 x_refsource_MISC
https://github.com/truelockmc/streambert/releases/tag/2.6.0 x_refsource_MISC