CVE-2026-106270

Analyzed Analyzed - Analysis Complete

Incorrect Authorization in WebAppInstalls in Google Chrome

Publication date: 2026-10-06

Last updated on: 2026-10-07

Assigner: Chrome

Description

Incorrect authorization in WebAppInstalls in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-06

Last Modified

2026-10-07

Generated

2026-10-19

AI Q&A

2026-10-06

EPSS Evaluated

2026-10-18

NVD

CVE-2026-106270

EUVD

EUVD-2026-93630

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 155.0.8059.39 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability involves incorrect authorization in WebAppInstalls in Google Chrome before version 155.0.8059.39. A remote attacker could exploit it by using a crafted HTML page to spoof UI elements, potentially misleading users.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 155.0.8059.39. To detect it, check your Chrome version by running chrome://version/ in the browser. If your version is below 155.0.8059.39, the system is vulnerable.

Impact Analysis

This vulnerability could allow attackers to trick users into interacting with fake UI elements, leading to unintended actions like installing malicious web apps or disclosing sensitive information.

Compliance Impact

This vulnerability involves incorrect authorization in WebAppInstalls, allowing UI spoofing via crafted HTML. It does not directly impact GDPR or HIPAA compliance as it is a low-severity UI issue rather than a data exposure or access control flaw.

Mitigation Strategies

Update Google Chrome to version 155.0.8059.39 or later to address the incorrect authorization issue in WebAppInstalls.

Hi! I’m here to help you understand CVE-2026-106270. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70