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HIGH

Streambert: Local File Exfiltration and Overwrite via Subtitle file: Protocol

Published Aug 18, 2026

Description

Streambert is a cross-platform Electron Desktop App to stream and download video content. Prior to 2.5.0, the downloadSubtitleFile utility in src/ipc/downloads.js, reached through the run-download IPC channel, accepts a renderer-supplied subtitle url using the file: URI scheme and passes its decoded pathname to fs.copyFileSync. The renderer also controls downloadPath, which determines the destination path. A compromised renderer can therefore copy any file readable by the StreamBERT process into an attacker-chosen writable location, exposing sensitive local data, and can overwrite existing writable files. This vulnerability is fixed in 2.5.0.

Affected products

Remediation

No remediation recorded yet.

References (1)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner GitHub_M
Published Aug 18, 2026
Updated Aug 19, 2026
Reserved Jun 8, 2026
CISA Vulnrichment
Updated Aug 19, 2026
NVD
Status Deferred
Modified Sep 9, 2026
Red Hat
Severity n/a
Public date n/a