CVE-2026-52876

HIGH 8.8

Streambert: Arbitrary File Execution via VLC/mpv Launcher Fallback

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-20 CWE-78
Vendor	truelockmc
Product	streambert
Published	Aug 18, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

truelockmc / streambert

< 2.6.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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