Vulnerability Description
Streamlink is a CLI utility which pipes video streams from various services into a video player. Prior to 8.6.0, HTTPSession mounts a FileAdapter for the file scheme and inherits redirect handling from requests.Session without rejecting cross-protocol redirects. A remote server controlling an HTTP or HTTPS URL reached by Streamlink can return a redirect to a local file URL, causing HTTPSession to read the local file and return its contents to the response consumer. This bypasses the direct file URL checks added for HLS and DASH content because the manifest contains an ordinary network URL and the scheme transition occurs later during fetch handling. The flaw applies to every request made through HTTPSession, and a segment fetch can place the local file contents into stream output. This issue is fixed in version 8.6.0.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/streamlink/streamlink/commit/4b99c64dde21ea70c24d9ffdbd15849b
- https://github.com/streamlink/streamlink/releases/tag/8.6.0
- https://github.com/streamlink/streamlink/security/advisories/GHSA-vf2x-4v53-pm7v
- https://github.com/streamlink/streamlink/security/advisories/GHSA-vf2x-4v53-pm7v
FAQ
What is CVE-2026-92164?
CVE-2026-92164 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Streamlink is a CLI utility which pipes video streams from various services into a video player. Prior to 8.6.0, HTTPSession mounts a FileAdapter for the file scheme and inherits redirect handling fro...
How severe is CVE-2026-92164?
CVE-2026-92164 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-92164?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.