CVE-2026-0907Network attack vector

UI spoofing via inactive-tab file picker

Published Jan 20, 2026 · Updated Jan 20, 2026

Incorrect security UI in Split View in Google Chrome before 144.0.7559.59 allows remote attackers to spoof site attribution via crafted HTML. An inactive Split View tab can open a system file picker, so the browser-mediated dialog appears without clear attribution to the site that triggered it. A crafted HTML page must be loaded in a split tab; the flaw can mislead a user about which site is requesting access to local files.

CVSS severity9.8
Critical
EPSS probability7.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect security UI in Split View in Google Chrome before 144.0.7559.59 allows remote attackers to spoof site attribution via crafted HTML. An inactive Split View tab can open a system file picker, so the browser-mediated dialog appears without clear attribution to the site that triggered it. A crafted HTML page must be loaded in a split tab; the flaw can mislead a user about which site is requesting access to local files.

The record

CVE
CVE-2026-0907
Published
Jan 20, 2026
Updated
Jan 20, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-451, T1036
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 20, 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=144.0.7559.59 <144.0.7559.59

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Google Chromeversion=144.0.7559.59 <144.0.7559.59

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-451User Interface (UI) Misrepresentation of Critical Information
T1036Masquerading

Public exploit references

No public exploit references are available in this record.

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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