Is streamlink affected by CVE-2026-44353?

PyPI streamlink is affected in <8.4.0.

Is CVE-2026-44353 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

medium

CVE-2026-44353

Q: Is CVE-2026-44353 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

PyPI · streamlink

Summary

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

Severity: medium
EPSS: 0.3% (p21)
Also known as: GHSA-hgqw-6m45-hw5f, PYSEC-2026-180
Published: 2026-05-27

References

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

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.