HOMEVULNERABILITIESCVE-2026-44353
MEDIUM

CVE-2026-44353

CWE-22Published: May 27, 2026· Updated: Jun 1, 2026

6.5
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:11.2th

Official 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.

NVD Source

Technical Analysis

CVE-2026-44353 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected Vendors & Products

streamlink1 product
streamlink
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (2)

→
https://github.com/streamlink/streamlink/security/advisories/GHSA-hgqw-6m45-hw5fExploit · Mitigation · Vendor Advisory
→
https://github.com/streamlink/streamlink/security/advisories/GHSA-hgqw-6m45-hw5fExploit · Mitigation · Vendor Advisory

Quick Facts

CVE IDCVE-2026-44353
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-22
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMay 27, 2026

Related CVEs (CWE-22)

CVE-2026-11420
10.0
CVE-2026-11414
10.0
CVE-2026-41211
10.0
CVE-2026-2731
10.0
CVE-2026-34909
KEV10.0
CVE-2026-22557
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-44353 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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