CVE-2026-44353

Published: May 27, 2026Modified: Jun 17, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploitability: 2.8 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

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.

Affected (1)

Products: Streamlink: Streamlink

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Streamlink Streamlink	Before 8.4.0

Related CWEs

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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.

References (2)

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

Source: security-advisories@github.com

ExploitMitigationVendor Advisory

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

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitMitigationVendor Advisory

Timeline

No history available yet.