CVE-2026-76019

Analyzed Analyzed - Analysis Complete

Incorrect Authorization Bypass in Google Chrome Workers

Publication date: 2026-08-20

Last updated on: 2026-08-25

Assigner: Chrome

Description

Incorrect authorization in Workers in Google Chrome prior to 151.0.7922.173 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-20

Last Modified

2026-08-25

Generated

2026-09-10

AI Q&A

2026-08-21

EPSS Evaluated

2026-09-07

NVD

CVE-2026-76019

EUVD

EUVD-2026-63596

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 151.0.7922.173 (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 Google Chrome's Workers feature. A remote attacker who already compromised the renderer process could bypass web origin policy by tricking a user into visiting a crafted HTML page. This allows the attacker to access resources from different origins than intended.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 151.0.7922.173. To detect it, check your Chrome version by running chrome://version/ in the browser address bar. If your version is below 151.0.7922.173, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow an attacker to access sensitive data from other websites you visit, steal cookies or session tokens, or perform actions on your behalf without your knowledge. It requires the attacker to first compromise the renderer process, which is difficult but possible through other means.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling unauthorized access to sensitive data through bypassed web origin policies. A compromised renderer process could allow attackers to access or manipulate user data, violating confidentiality and integrity requirements under these regulations.

Mitigation Strategies

Update Google Chrome to version 151.0.7922.173 or later to address the vulnerability.

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