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CVE-2026-52875— Streambert: Arbitrary Directory Creation and File Manipulation via Backup Handler

Quick assessment

Affected
truelockmc streambert
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

true_lock Streambert是德国true_lock个人开发者的一款跨平台的 Electron 桌面应用。 true_lock Streambert 2.6.0之前版本存在安全漏洞，该漏洞源于perform-scheduled-backup IPC处理器未检查settings.path是否位于授权备份位置，可能导致路径遍历攻击，攻击者可创建目录、写入或删除文件。

CVSS 8.4 · High EPSS 0.14% · P4

Possible ATT&CK Techniques 2 AI

T1059.007 · JavaScript T1222.003

Affected Version Matrix 1

VendorProduct Version RangeStatus
truelockmc streambert < 2.6.0 affected
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I. Basic Information for CVE-2026-52875

Vulnerability Information
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Vulnerability Title
Streambert: Arbitrary Directory Creation and File Manipulation via Backup Handler
Source: CVE Program / CVE List V5
Vulnerability Description
Streambert is a cross-platform Electron Desktop App to stream and download video content. Prior to 2.6.0, the perform-scheduled-backup IPC handler in src/ipc/storage.js takes settings.path from a renderer-supplied object and uses the resulting directory for fs.mkdirSync, fs.writeFileSync, fs.readdirSync, and fs.unlinkSync operations without checking that it is inside an authorized backup location. A compromised renderer can choose an absolute path or a relative traversal path to create directories and write a streambert-backup-[timestamp].json file containing renderer-controlled data. The pruning loop can also delete files in that directory whose names begin with streambert-backup- and end with .json. This vulnerability is fixed in 2.6.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
true_lock Streambert 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
true_lock Streambert是德国true_lock个人开发者的一款跨平台的 Electron 桌面应用。 true_lock Streambert 2.6.0之前版本存在安全漏洞，该漏洞源于perform-scheduled-backup IPC处理器未检查settings.path是否位于授权备份位置，可能导致路径遍历攻击，攻击者可创建目录、写入或删除文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
truelockmc streambert < 2.6.0 -

II. Public POCs for CVE-2026-52875

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 9667 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-52875

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Patches & Fixes for CVE-2026-52875 (2)

Vendor Advisories for CVE-2026-52875 (1)

Same Patch Batch · truelockmc · 2026-08-18 · 5 CVEs total

CVE-2026-52876 8.8 HIGH Streambert: Arbitrary File Execution via VLC/mpv Launcher Fallback
CVE-2026-52872 8.8 HIGH Streambert: Local File Exfiltration and Overwrite via Subtitle file: Protocol
CVE-2026-52877 8.3 HIGH Streambert : Insecure Protocol Execution in open-external IPC Handler
CVE-2026-52873 6.9 MEDIUM Streambert: Global CSP Removal in Wyzie Redeem Window Enables Unconstrained XSS in Electro

IV. Related Vulnerabilities

Same product: streambert
Same vendor: truelockmc
Same weakness: CWE-22

V. Comments for CVE-2026-52875

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