CVE-2026-52872 (GCVE-0-2026-52872)

Vulnerability from cvelistv5 – Published: 2026-08-18 21:26 – Updated: 2026-08-19 16:49
VLAI
Title
Streambert: Local File Exfiltration and Overwrite via Subtitle file: Protocol
Summary
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.
Severity
8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 16:47 UTC
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-73 - External Control of File Name or Path
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7985 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
truelockmc streambert Affected: < 2.5.0
guessed Create a notification for this product.
Show details on NVD website
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