CVE-2026-92164Public exploitNetwork attack vectorHinoki check available

Local file read via cross-protocol redirects

Published Sep 23, 2026 · Updated Sep 23, 2026

Local file read in Streamlink before 8.6.0 allows remote attackers to place readable local file contents into stream output via redirects. HTTPSession mounts a FileAdapter and follows inherited redirects from HTTP or HTTPS URLs to file URLs without validating the scheme transition. A Streamlink run must reach an attacker-controlled URL; exposure is limited to files readable by that process, and direct exfiltration depends on access to the output.

CVSS severity6.5
Medium
EPSS probability0.27%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Local file read in Streamlink before 8.6.0 allows remote attackers to place readable local file contents into stream output via redirects. HTTPSession mounts a FileAdapter and follows inherited redirects from HTTP or HTTPS URLs to file URLs without validating the scheme transition. A Streamlink run must reach an attacker-controlled URL; exposure is limited to files readable by that process, and direct exfiltration depends on access to the output.

The record

CVE
CVE-2026-92164
Published
Sep 23, 2026
Updated
Sep 23, 2026
Vendor
Streamlink
Product
Streamlink
Classifications
CWE-73, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 8.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Streamlink · Streamlinkversion=< 8.6.0

Published CVSS scores

6.5Streamlink GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-73External Control of File Name or Path
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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