CVE-2026-13945 - Vulnerability Details

Description

Insufficient policy enforcement in Extensions in Google Chrome on Linux prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to perform UI spoofing via a crafted Chrome Extension. (Chromium security severity: Medium)

Published: 2026-06-30

Score: 3.1 Low

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

A flaw in Google Chrome on Linux allows an extension, once installed, to spoof the browser’s user interface, creating counterfeit dialog boxes or interface elements that can deceive users into revealing credentials or performing unintended actions. The vulnerability stems from insufficient policy enforcement for extensions and is classified as CWE-451. The CVSS score is 3.1.

Affected Systems

Google Chrome versions prior to 150.0.7871.47 on Linux operating systems are affected. The issue is tied to how extensions are managed before this patch release, impacting any Chrome session where an extension is active.

Risk and Exploitability

The vulnerability is not listed in CISA’s KEV catalog, and the EPSS score is < 1%, indicating limited publicly known exploitation. The CVSS score of 3.1 reflects low severity. The likely attack vector requires a user to be persuaded to install a malicious extension; once installed, the extension runs with browser privileges and can manipulate UI elements, leveraging the spoofing capability for phishing or deceptive interactions. The Medium Chromium severity suggests a moderate risk to users that install untrusted extensions.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Google

Chrome

affected

Version	Status	Constraints
`150.0.7871.47`	affected	< 150.0.7871.47

No data.

Vendor Product Confidence Versions

Google

Chrome

100%

Version	Status	Scheme	Platform
`[150.0.7871.47,150.0.7871.47)`	affected	generic	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Upgrade Chrome to version 150.0.7871.47 or later, which implements proper policy enforcement for extensions
Remove any Chrome extensions that appear suspicious or are not from trusted sources
Educate users about the risks of installing extensions from unverified developers and the importance of scrutinizing requested permissions

Generated by OpenCVE AI on August 2, 2026 at 00:31 UTC.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
Debian DLA	DLA-4672-1	chromium security update
Debian DSA	DSA-6378-1	chromium security update

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00166.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html
https://issues.chromium.org/issues/513226551

History

Tue, 28 Jul 2026 16:15:00 +0000

Type	Values Removed	Values Added
Title	Chrome Linux Extension UI Spoofing Vulnerability

Fri, 24 Jul 2026 18:30:00 +0000

Type	Values Removed	Values Added
Title		Chrome Linux Extension UI Spoofing Vulnerability

Wed, 22 Jul 2026 15:45:00 +0000

Type	Values Removed	Values Added
Title	UI Spoofing via Malicious Chrome Extensions on Linux

Thu, 16 Jul 2026 12:45:00 +0000

Type	Values Removed	Values Added
Title		UI Spoofing via Malicious Chrome Extensions on Linux

Tue, 14 Jul 2026 12:00:00 +0000

Type	Values Removed	Values Added
Title	Chrome Extension UI Spoofing via Insufficient Policy Enforcement on Linux

Mon, 13 Jul 2026 05:30:00 +0000

Type	Values Removed	Values Added
Title		Chrome Extension UI Spoofing via Insufficient Policy Enforcement on Linux

Sun, 12 Jul 2026 11:00:00 +0000

Type	Values Removed	Values Added
Title	UI Spoofing via Malicious Chrome Extensions on Linux

Sat, 11 Jul 2026 09:30:00 +0000

Type	Values Removed	Values Added
Title		UI Spoofing via Malicious Chrome Extensions on Linux

Fri, 10 Jul 2026 12:15:00 +0000

Type	Values Removed	Values Added
Title	Chrome Extension UI Spoofing on Linux

Thu, 09 Jul 2026 21:45:00 +0000

Type	Values Removed	Values Added
Title		Chrome Extension UI Spoofing on Linux

Thu, 09 Jul 2026 08:15:00 +0000

Type	Values Removed	Values Added
Title	UI Spoofing via Malicious Chrome Extensions on Linux

Wed, 08 Jul 2026 08:30:00 +0000

Type	Values Removed	Values Added
Title		UI Spoofing via Malicious Chrome Extensions on Linux

Tue, 07 Jul 2026 10:30:00 +0000

Type	Values Removed	Values Added
Title	Chrome Extension UI Spoofing on Linux via Insufficient Policy Enforcement

Mon, 06 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Title		Chrome Extension UI Spoofing on Linux via Insufficient Policy Enforcement

Mon, 06 Jul 2026 07:45:00 +0000

Type	Values Removed	Values Added
Title	Chrome Extension UI Spoofing Vulnerability on Linux

Sun, 05 Jul 2026 15:00:00 +0000

Type	Values Removed	Values Added
Title		Chrome Extension UI Spoofing Vulnerability on Linux

Sun, 05 Jul 2026 04:00:00 +0000

Type	Values Removed	Values Added
Title	UI Spoofing via Malicious Extensions in Google Chrome on Linux

Sat, 04 Jul 2026 15:45:00 +0000

Type	Values Removed	Values Added
Title		UI Spoofing via Malicious Extensions in Google Chrome on Linux

Sat, 04 Jul 2026 04:15:00 +0000

Type	Values Removed	Values Added
Title	Chrome Extension UI Spoofing Vulnerability on Linux

Fri, 03 Jul 2026 12:45:00 +0000

Type	Values Removed	Values Added
Title		Chrome Extension UI Spoofing Vulnerability on Linux

Thu, 02 Jul 2026 22:45:00 +0000

Type	Values Removed	Values Added
Title	Chrome UI Spoofing via Malicious Extension on Linux

Thu, 02 Jul 2026 11:45:00 +0000

Type	Values Removed	Values Added
Title		Chrome UI Spoofing via Malicious Extension on Linux

Thu, 02 Jul 2026 01:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-451
Metrics		cvssV3_1 `{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N'}`

Wed, 01 Jul 2026 20:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 01 Jul 2026 09:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Google Google chrome
Vendors & Products		Google Google chrome

Wed, 01 Jul 2026 08:00:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Policy Enforcement in Chrome Extensions Allows UI Spoofing on Linux
Weaknesses	CWE-1021

Wed, 01 Jul 2026 01:45:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Policy Enforcement in Chrome Extensions Allows UI Spoofing on Linux
Weaknesses		CWE-1021

Tue, 30 Jun 2026 23:15:00 +0000

Type	Values Removed	Values Added
Description		Insufficient policy enforcement in Extensions in Google Chrome on Linux prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to perform UI spoofing via a crafted Chrome Extension. (Chromium security severity: Medium)
References		https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html https://issues.chromium.org/issues/513226551

Subscriptions

Google Chrome

MITRE

Status: PUBLISHED

Assigner: Chrome

Published: 2026-06-30T22:38:31.142Z

Updated: 2026-07-02T00:39:29.387Z

Reserved: 2026-06-29T23:03:58.505Z

Link: CVE-2026-13945

Vulnrichment

Updated: 2026-07-01T19:26:25.555Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-02T00:45:03Z

Weaknesses

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

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

Exploitation none

Automatable no

Technical Impact partial

Subscriptions

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