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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| streamlink | streamlink | < 8.4.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | streamlink | 8.4.0-1 | — |
| Debian 13 | streamlink | No fix yet | — |
| Debian 12 | streamlink | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | streamlink | No fix yet | — |
| Ubuntu 26.04 LTS | streamlink | No fix yet | — |
| Ubuntu 25.10 | streamlink | No fix yet | — |
| Ubuntu 24.04 LTS | streamlink | No fix yet | — |
| Ubuntu 22.04 LTS | streamlink | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | streamlink | No fix yet | — |
| Ubuntu 18.04 LTS | streamlink | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | streamlink | 8.4.0-1.1 | openSUSE-SU-2026:10733-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | streamlink | < 8.4.0 | 8.4.0 | GHSA-hgqw-6m45-hw5f |
Advisories 1
- openSUSE-SU-2026:10733-1 streamlink-8.4.0-1.1 on GA media SUSE / openSUSE Security Updates · May 9, 2026