Vulnerability details
CVE-2026-52872
truelockmc streambert
Streambert: Local File Exfiltration and Overwrite via Subtitle file: Protocol
CVSS 3.1
8.8High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| truelockmc | streambert | < 2.5.0 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/truelockmc/streambert/security/advisories/GHSA-v74h-2468-rxhh x_refsource_CONFIRM
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Details
- Published
- 2026-08-19
- Last updated
- 2026-08-19
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.18%
Probability of exploitation in 30 days
7.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-73External Control of File Name or Path