CVE-2026-102320

Analyzed Analyzed - Analysis Complete

Missing Authorization in CORS in Google Chrome

Publication date: 2026-09-29

Last updated on: 2026-09-30

Assigner: Chrome

Description

Missing authorization in CORS in Google Chrome prior to 154.0.8037.92 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-29

Last Modified

2026-09-30

Generated

2026-10-19

AI Q&A

2026-09-30

EPSS Evaluated

2026-10-18

NVD

CVE-2026-102320

EUVD

EUVD-2026-89399

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 154.0.8037.92 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability is a missing authorization issue in CORS (Cross-Origin Resource Sharing) in Google Chrome versions before 154.0.8037.92. It allowed a remote attacker who had already compromised the renderer process to bypass the web origin policy by using a specially crafted HTML page.

Detection Guidance

Detection of this vulnerability requires checking the Chrome version installed on your system. If the version is prior to 154.0.8037.92, the system is vulnerable. Use the command 'google-chrome --version' on Linux or check 'chrome://version/' in the browser to verify the version.

Impact Analysis

If an attacker exploits this, they could access resources or data on websites that should be restricted due to same-origin policy. This could lead to unauthorized data exposure or manipulation, but only if the attacker already compromised the renderer process.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized access to sensitive data through bypassed web origin policies. A compromised renderer process could exfiltrate data from cross-origin requests, violating data protection requirements under these regulations.

Mitigation Strategies

Update Google Chrome to version 154.0.8037.92 or later to address the missing authorization in CORS vulnerability.

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