CVE-2026-82809Public exploitNetwork attack vector

Video-frame disclosure via unchecked postMessage origin

Published Aug 31, 2026 · Updated Aug 31, 2026

Information disclosure in vidIQ Vision for YouTube 3.199.0 allows remote attackers to obtain video frames through a crafted postMessage. The handler trusts vidiqEvent=getVideoStill without validating event.origin, draws the current video to a canvas, and posts the base64 image to the requester. Exploitation requires the extension on an active YouTube page and page-associated script access; it discloses video frames, not files or accounts.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in vidIQ Vision for YouTube 3.199.0 allows remote attackers to obtain video frames through a crafted postMessage. The handler trusts vidiqEvent=getVideoStill without validating event.origin, draws the current video to a canvas, and posts the base64 image to the requester. Exploitation requires the extension on an active YouTube page and page-associated script access; it discloses video frames, not files or accounts.

The record

CVE
CVE-2026-82809
Published
Aug 31, 2026
Updated
Aug 31, 2026
Vendor
vidIQ
Product
vidIQ Vision for YouTube
Classifications
CWE-284, CWE-200, T1113
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 31, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=3.199.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

vidIQ · vidIQ Vision for YouTubeversion=3.199.0

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
4.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
5.0VulDBAV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1113Screen Capture

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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Your stack

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