External risk intelligence

Google Chrome Same Origin Policy Bypass Vulnerability

CVE advisorySeverity: MEDIUM (CVSS 4.3)

CVE-2026-14105

This vulnerability exists within the client-side browser application (Google Chrome). It requires a user to navigate to a crafted HTML page, meaning it is not a public-facing service, gateway, or network infrastructure component that is reachable via the internet by design.

Google Chrome

before 150.0.7871.47

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This CVE describes a vulnerability in Google Chrome that could allow a remote attacker to bypass security restrictions on web pages. While the severity is rated as critical based on technical metrics, its impact is considered low because it requires a user to visit a malicious website. The main concern is to confirm if this specific type of interaction is relevant to your environment.

Bypass web page security rules.
Low risk, but critical technical flaw.
Confirm relevance for limited exposure.

Attack Path

How an attacker could exploit the issue

An attacker with network access can present a specially crafted HTML page to a user, bypassing the same-origin policy. This could expose sensitive information or allow unauthorized actions.

Requires network access.
Triggered by visiting a malicious page.
Potential for data leakage.

Live Threat

Current exploitation, exposure, and threat context

A bypass of the same-origin policy in Google Chrome's Speech component could allow a remote attacker to access sensitive information or manipulate data on a user's browser when they visit a specially crafted webpage. This could potentially expose user data or affect the behavior of web services within the browser.

User browser data and web service behavior.
Via a crafted HTML page opened by a user.
Unauthorized access to sensitive information.

Operational Fix

Recommended remediation, mitigation, and detection steps

This CVE affects the Speech component in Google Chrome, impacting client-side applications. Responsibility for managing this risk typically lies with teams responsible for endpoint security and application deployment, such as IT Operations or End User Computing, in coordination with the vendor. The immediate priority is to confirm the presence of affected Chrome versions within the environment, assess user exposure, and plan for controlled updates during the next maintenance window.

Endpoint security and IT operations teams.
Verify affected Chrome versions and user exposure.
Plan and deploy browser updates.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Google Chrome's Speech component?

The Speech component is a built-in feature of the Google Chrome browser that enables speech recognition and synthesis capabilities for web applications. It allows websites to process audio input or convert text into spoken words directly within the browser environment. This vulnerability specifically impacts how the browser enforces security policies while managing these speech-related features.

How does CVE-2026-14105 bypass the same-origin policy?

This vulnerability, classified as CWE-346, involves a failure in policy enforcement. Normally, the same-origin policy prevents a website from accessing data from another site to keep your information private. In this case, the flaw allows a malicious site to trick the browser into ignoring these boundaries, potentially granting unauthorized access to data or actions intended for a different, trusted website.

Does visiting any website trigger this browser flaw?

No. The vulnerability is not triggered by simply having the browser installed or navigating to standard, trusted websites. It requires a specific action: the user must manually navigate to a specially crafted, malicious HTML page designed to exploit this speech component flaw. If a user does not interact with such a site, the underlying weakness remains dormant.

Why does Halo Surface Signal rate this as very unlikely?

Halo Surface Signal labels this as very unlikely because the risk is confined to a client-side browser application. Unlike a server or network gateway that is constantly reachable over the internet, Chrome is an endpoint tool. The vulnerability cannot be exploited by scanning your network infrastructure; it is only reachable if an end user chooses to visit a hostile web page.

What is the best way to address this Chrome vulnerability?

The most effective response is to ensure that Google Chrome is updated to version 150.0.7871.47 or later. Since this is an endpoint-level issue, IT or end-user computing teams should focus on verifying the browser versions currently installed on organization-managed devices. Prioritize these updates as part of your regular maintenance cycle to patch the policy enforcement defect.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.