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CVE-2026-92164— Streamlink: HTTPSession follows HTTP redirects into file:// URLs, reading local files

Quick assessment

Affected
streamlink streamlink
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 redirect

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-92164

Vulnerability Information

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Vulnerability Title
Streamlink: HTTPSession follows HTTP redirects into file:// URLs, reading local files
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
streamlink streamlink < 8.6.0 -

II. Public POCs for CVE-2026-92164

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III. Intelligence Information for CVE-2026-92164

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Patches & Fixes for CVE-2026-92164 (1)

Vendor Advisories for CVE-2026-92164 (1)

Vendor Pages for CVE-2026-92164 (1)

IV. Related Vulnerabilities

Same product: streamlink
Same vendor: streamlink
Same weakness: CWE-73

V. Comments for CVE-2026-92164

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