CVE-2026-44353
Streamlink has an arbitrary local file read via file:// URI in HLS and DASH
6.5
MEDIUM
CVSS 3.1
EPSS 0.03%
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.
How to fix CVE-2026-44353
To remediate CVE-2026-44353, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 8.4.0 or later
- —upgrade to 8.4.0 or later
Is CVE-2026-44353 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0
- from 0, < 8.4.0
- from 0, < 8.4.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |