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    CVE-2026-44353

    Streamlink is a CLI utility which pipes video streams from various services into a video player. Prior to 8.4.0, Streamlink's HLS and DASH parsers do not validate the URI scheme of segment entries and other resources. A remote .m3u8 HLS playlist or .mpd DASH manifest can list file:///path/to/file as a segment, and streamlink will read that local file and write its contents to the output stream. This vulnerability is fixed in 8.4.0.

    Published:May 27, 2026
    Last Modified:Jun 1, 2026
    EPS:May 27, 2026
    EPSS Score:0.00036
    CVSS Score:6.5

    Affected Products

    Vendor
    Streamlink
    Product
    Streamlink

    Exploits

    https://github.com/streamlink/streamlink/security/advisories/GHSA-hgqw-6m45-hw5fhttps://github.com/streamlink/streamlink/security/advisories/GHSA-hgqw-6m45-hw5f

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High