External Control of File Name or Path in streamlink - CVE-2026-92164
Published: September 15, 2026 / Updated: September 28, 2026
Vulnerability identifier: #VU149944
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-92164
CWE-ID: CWE-73
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper validation of redirect target schemes in HTTPSession redirect handling when following HTTP redirects. A remote attacker can return a redirect to a file URL to disclose sensitive information.
User interaction is required to invoke an attacker-controlled playlist, manifest, or referenced URL.
Affected software
streamlink
Fedora
python-streamlink
Fedora
python-streamlink
How to mitigate CVE-2026-92164
Install security update from vendor's website.
streamlink - update to 8.6.0
python-streamlink - addressed in versions 8.6.2-1.fc43, 8.6.2-1.fc44, 8.6.2-1.fc45
python-streamlink - addressed in versions 8.6.2-1.fc43, 8.6.2-1.fc44, 8.6.2-1.fc45