truelockmc streambert up to 2.4.x Archive extracted.name input validation

Summaryinfo

A vulnerability classified as critical was found in truelockmc streambert up to 2.4.x. Impacted is an unknown function of the component Archive Handler. The manipulation of the argument extracted.name results in input validation. This vulnerability is cataloged as CVE-2026-48055. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in truelockmc streambert up to 2.4.x. Affected is an unknown function of the component Archive Handler. The manipulation of the argument extracted.name with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on integrity, and availability. CVE summarizes:

Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and prior, a high-severity Zip Slip vulnerability was identified in Streambert's subtitle extraction logic. The application does not sanitize archive entry filenames during extraction, allowing a malicious archive to perform path traversal and write arbitrary files to the host filesystem. The subtitle extraction process downloads a ZIP archive and extracts its entries. The destination file path is constructed by concatenating the raw archive entry name (extracted.name) directly to the temporary directory path. If a malicious ZIP archive containing directory traversal sequences is processed, it escapes the temporary directory boundaries. The application then writes the extracted payload anywhere on the host filesystem subject to the application's current write permissions. This issue has been fixed in version 2.5.0.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-48055 since 05/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

Upgrading to version 2.5.0 eliminates this vulnerability.

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Productinfo

Vendor

• truelockmc

Name

• streambert

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4

Website

• Product: https://github.com/truelockmc/streambert/

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