muxinc next-video up to 2.8.0 Request src/utils/utils.ts isRemote url path traversal

Summaryinfo

A vulnerability was found in muxinc next-video up to 2.8.0 and classified as problematic. This issue affects the function isRemote of the file src/utils/utils.ts of the component Request Handler. The manipulation of the argument url results in path traversal. This vulnerability was named CVE-2026-54150. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in muxinc next-video up to 2.8.0. It has been classified as problematic. Affected is the function isRemote of the file src/utils/utils.ts of the component Request Handler. The manipulation of the argument url with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. CVE summarizes:

next-video is a library for adding video to Next.js applications. Prior to 2.8.1, the GET endpoint exported by next-video/request-handler and commonly mounted at /api/video accepts an unauthenticated url query parameter, while src/utils/utils.ts isRemote() treats any value without an HTTP or HTTPS prefix as a local path. src/request-handler.ts passes that value through src/assets.ts getAssetPath() to src/config.ts loadAsset(), which appends a JSON suffix and uses fs.readFile without canonicalizing the path or verifying that it remains inside the configured video folder. A remote attacker can therefore escape the intended asset directory and read JSON files accessible to the application process, including Next.js server-action encryption material, preview-mode keys, build manifests, route metadata, absolute paths, and application video asset identifiers. Applications that do not expose the runtime request handler are not affected through this route. This issue is fixed in version 2.8.1.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-54150 since 06/11/2026. 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. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 2.8.1 eliminates this vulnerability.

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Productinfo

Vendor

• muxinc

Name

• next-video

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8.0

Website

• Product: https://github.com/muxinc/next-video/

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