Cross-Origin Data Leak via Password Policy Bypass in Chrome

Publication date: 2026-04-15

Last updated on: 2026-05-10

Assigner: Chrome

Description

Insufficient policy enforcement in Passwords in Google Chrome prior to 147.0.7727.101 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-04-15

Last Modified

2026-05-10

Generated

2026-07-06

AI Q&A

2026-04-15

EPSS Evaluated

2026-07-05

NVD

CVE-2026-6312

EUVD

EUVD-2026-23066

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 147.0.7727.101 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability is an insufficient policy enforcement issue in the Passwords feature of Google Chrome versions prior to 147.0.7727.101. It allows a remote attacker who has already compromised the renderer process to leak cross-origin data by using a specially crafted HTML page.

Impact Analysis

The vulnerability can lead to the leakage of cross-origin data, meaning that sensitive information from one origin could be exposed to another unauthorized origin. This could result in privacy breaches or unauthorized access to user data if an attacker successfully exploits the compromised renderer process.

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